DOCSLIB.ORG

Synthesis of Three Novel Silane-Based Carboxylic Acids for Application in Methacrylated Epoxy-Based Oligomers and Their Ability in the UV Curable Hybrid Coatings

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Synthesis of Three Novel Silane-Based Carboxylic Acids for Application in Methacrylated Epoxy-Based Oligomers and Their Ability in the UV Curable Hybrid Coatings Synthesis of three novel silane-based carboxylic acids for application in methacrylated epoxy-based oligomers and their ability in the UV curable hybrid coatings Hamid Javaherian Naghash ( [email protected] ) Islamic Azad University Majid Kolahdoozan Islamic Azad University Niloufar Ranjbar Islamic Azad University Original Research Full Papers Keywords: Silane based acids, Hybrid sol–gel coatings, UV curing, MEK rubbing test, Siliconated/methacrylated soybean oil Posted Date: February 9th, 2021 DOI: https://doi.org/10.21203/rs.3.rs-193633/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Synthesis of three novel silane-based carboxylic acids for application in methacrylated epoxy-based oligomers and their ability in the UV curable hybrid coatings Niloufar Ranjbar, Majid Kolahdoozan and Hamid Javaherian Naghash* Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311- 86145, Shahreza, Isfahan, I. R. Iran, Tel. No. 0321- 3292507, Fax No. 0321-3232701- 2, E-mail: Javaherian @ iaush.ac.ir *To whom correspondence should be addressed 1 1 ABSTRACT In this study, bromoacetic acid was reacted with 3-(mercaptopropyl) trimethoxy silane (MPTS) and trimethoxy silyl propyl thioacetic acid (TSTA) was produced. Also, bromoacetic acid was reacted with 3-(triethoxysilyl) propylamine (APTS), and triethoxysilyl propylamino acetic acid (TSPA) was synthesized. Finally, from a reaction between trimellitic anhydride (TMA) and APTS, trimellitylimidopropyl triethoxysilane (TMIS) resulted. In all reactions mentioned above, a carboxylic acid head and a trialkoxy silane tail including reactants were obtained. Furthermore, hybrid coatings based on methacrylated bisphenol A epoxy (MBAE) and synthesized carboxylic acids were obtained by photopolymerization. Polycarbonate substrates were utilized for preparation of transparent hybrid films. Then, the solvent resistance, hardness, gel content as well as the adhesion of coatings were measured as physical and mechanical properties. According to the obtained results, these properties of hybrid coatings improved with the increase in alkoxysilanes and sol–gel precursor contents. The surface morphology was characterized by scanning electron microscopy (SEM). The results showed that silica particles were not dispersed homogenously at the molecular level in the hybrid system. Also, the thermogravimetric analysis results indicated that alkoxysilanes enhanced the thermal oxidative stability of the hybrid coatings. Keywords: Silane based acids; Hybrid sol–gel coatings; UV curing; MEK rubbing test; Siliconated/methacrylated soybean oil. 2 2 INTRODUCTION During the synthesis and use of paints, a considerable amount of detrimental vapors are released from organic-based raw materials [1]. Such vapors can be reduced in the coating industry by Ultraviolet (UV) curing technology [2]. UV-curable coatings compared with the traditional ways have remarkable benefits such as low energy consumption, a higher pace in the curing process and no need to a solvent [3-7]. On the other hand, renewable resources have been used in additives and adhesives industries as alternatives to crude oil [8] vegetable oil is a safe resource among them. Vegetable oil-based coatings can reduce vapor emissions and improve the degeneration capacity of paints [9]. Furthermore, vegetable oils are film formers and their combination with UV-curable technology could be an environment-friendly technique for the current paint industry problems [10-13]. Vegetable oils are composed mainly of triglycerides with multiple fatty acid chains including 14-20 carbon atoms with some functional groups such as double bonds and epoxy groups [14]. Double bonds are cross-linkage by mechanism of self-oxidizing due to the oxygen-sensitivity of this functional group 15-17]. Although, Self-oxidation is a time taking process therefore driers are used to fasten the curing rate. Grafting acrylate fractions with more active double bonds or any other effective groups such as siloxanes etc. to improve material properties is an advantage of double bonds in vegetable oils 18-24]. A typical methacrylated vegetable oil oligomer is methacrylated epoxidized soybean oil (MESO) generally attained by the ring opening reaction of methacrylic acid with epoxidized soybean oil (ESO) for preparing UV-curable coatings. A polymer with similar properties to report petroleum-based composition from acrylated epoxidized soybean oil (AESO), curing with a rosin-based acrylamide was prepared by Shang and coworkers [25]. 3 3 Also, Qiu et al [26]. developed an AESO-based resin without styrene with an improved fiber/matrix interface adhesion. Their study demonstrated that AESO was preferable as a modifier to the epoxy resin because of its good mechanical properties [27]. Additionally, paint compositions incorporating silicone monomers have attracted special attention due to some of their properties such as excellent flexibility, low surface energy and very good thermal stability [28-31]. According to the Isin and co-workers the Si atoms of silicone containing macromolecules which arranged in the backbone or pendant groups present these properties to matrix [32]. In the present study, our basic goal was better understanding the effect of excess amount of silanes on the hybrid coatings in the presence of TEOS and sol gel method. For this purpose, firstly, three novel silane based carboxylic acids were prepared to introduce alkoxysilanes moieties in the epoxy chains by ring opening reactions. Accordingly, ESO was reacted with equal amounts of silane based carboxylic acids and methacrylic acid. Epoxy resin was also reacted with methacrylic acid. TEOS was hydrolyzed in the presence of water and ethanol and coreacted with 3-methacryloxypropyltrimetoxysilane (TSPM). The UV induced polymerization was used to cure organic–inorganic hybrid coatings. The structural characteristics of silane based carboxylic acids were analyzed by Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance (NMR) as well as FT-IR for hybrid materials. Thermal properties of hybrid coatings were performed by DSC and thermal gravimetric analysis (TGA) techniques. 4 4 Experimental Materials Trimellitic anhydride (TMA), Bromoacetic acid, Methacrylic acid, Triphenyl phosphine (TPP), p-Toluene sulfonic acid, Tetraethylorthosilicate (TEOS), (3- Mercaptopropyl) trimethoxy silane (MPTS), 3-(Triethoxysilyl) propylamine (APTS), 3- Methacryloxypropyltrimethoxysilane (TSPM), Trimetylolpropane triacrylate (TMPA), Ethanol, Hydroquinone, Triethylamine (TEA) and Tetrahydrofuran (THF) were purchased from Merck Chemical Co., Germany and were used as received. Bisphenol A epoxy resin (DER-351, epoxide content 5.50–5.90 mol/kg) was supplied by Dow Chemical. Epoxidized soybean oil (ESO, epoxide content 4.20 mol/kg) was purchased from Aladdin Industrial Co., China. The photoinitiator Phenylbis (2, 4, 6 trimethylbenzoyl) phophine oxide (PTBP) was provided from Sigma Aldrich. The substrates used in this work were polycarbonate panels (3 mm×50 mm×100 mm) and were obtained from Isfahan province, Iran. Characterization The FT-IR spectra were recorded with the help of a Nicolet Impact 400D Model spectrophotometer (Nicolet Impact, Madison, USA) in the spectral range between 4000 and 400 cm-1 characterized by FT-IR. NMR Spectra were recorded on a Bruker 400 MHz NMR Spectrometer (USA). Chemical shifts were reported in ppm and referenced to residual solvent resonances (1H, 13C) or an internal standard. DSC thermograms were taken on a Mettler TA 4000 Model apparatus at a heating rate of 10 °C/min. TGA measurements of copolymers were carried out by a Dupont TGA 951 under nitrogen atmosphere at a heating rate of 10 °C/min. Scanning electron micrographs were taken on a JEOL-JXA 840 5 5 A SEM (JEOL, Boston, USA). The specimens were prepared for SEM by freeze-fracturing in liquid nitrogen and the application of a gold coating of approximately 300 Ao with an Edwards S 150 B sputter coater. To better understand the physical and chemical properties of cross-linked films, some polycarbonate panels were used for applying the coating formulations using an applicator and cured in a bench type UV processor (Dadkhah electronic Isfahan-Iran, 120W/cm, λmax = 365 nm, medium pressure mercury UV lamps). In addition, Soxhlet extraction method was used for determination of gel contents of the UV cured hybrid films. Accordingly, insoluble gel fraction was dried in a vacuum oven at 60 °C to constant weight and then weighed to estimate the gel content using the following equation: Gel content (%) = (Wf/Wi)×100 where, Wf indicates the final weight after extraction and Wi indicates the initial weight of the hybrid films, respectively. The corresponding standard test methods of paints were used to measure the coating performance. The MEK rub test (ASTM D-5402), tape adhesion (ASTM D-3359) and pencil hardness (ASTM D-3363) are the most favorite methods mentioned above Synthesis of trimethoxysilyl propyl thioacetic acid (TSTA) 1.40 g (10 mmol) bromoacetic acid and 25 mL dehydrated THF were charged into a 100 mL three necked round bottom flask equipped with a dropping funnel, a reflux condenser and a nitrogen inlet. The acid and THF were stirred strongly until a homogenous mixture were obtained. Then, 2g (10 mmol) MPTS was diluted by a 5 mL THF and added drop-wise to the mixture. This mixture was stirred magnetically at reflux temperature for 24 hrs. under nitrogen atmosphere. 3-5 drops
Load more

Recommended publications
  • A Sacred Celestial Motif: an Introduction to Winged Angels Iconography in Iran
    PEOPLE: International Journal of Social Sciences ISSN 2454-5899 Mazloumi & Nasrollahzadeh, 2017 Volume 3 Issue 2, pp. 682 - 699 Date of Publication: 16th September, 2017 DOI-https://dx.doi.org/10.20319/pijss.2017.32.682699 This paper can be cited as: Mazloumi, Y., & Nasrollahzadeh, C. (2017). A Sacred Celestial Motif: An Introduction to Winged Angels Iconography in Iran. PEOPLE: International Journal of Social Sciences, 3(2), 682-699. This work is licensed under the Creative Commons Attribution-Non-commercial 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA. A SACRED CELESTIAL MOTIF: AN INTRODUCTION TO WINGED ANGELS ICONOGRAPHY IN IRAN Yasaman Nabati Mazloumi M.A in Iranian Studies, Shahid Beheshti University, Daneshjoo Blvd, Velenjak, Street, Tehran, Iran [email protected] Cyrus Nasrollahzadeh Associate Professor, Department of Ancient Iranian Culture and Languages, Institute for Humanities and Cultural Studies, 64th Street, Kurdestan Expressway, Tehran, Iran [email protected] Abstract Through history many motifs have been created and over the centuries, some of them turned into very well-known symbols. One of these motifs is winged angel. This sacred and divine creature which appears in human-shaped, serves intermediaries between the God and people, and during history, indicates legitimating and bestows God-given glory. This article aims to present the results of exploring the historical background of the winged angels in Iran, in order to understand its precise concept; where it comes from and what it resembles.
    [Show full text]
  • Kashan Kashan Is a City in the Isfahan Province of Iran. Kashan Is the First
    Kashan Kashan is a city in the Isfahan province of Iran. Kashan is the first of the large oases along the Qom-Kerman road which runs along the edge of the central deserts of Iran. Its charm is thus mainly due to the contrast between the parched immensities of the deserts and the greenery of the well-tended oasis. Archeological discoveries in the Sialk Hillocks which lie 2.5 miles (4 km) west of Kashan reveal that this region was one of the primary centers of civilization in pre-historic ages. Hence Kashan dates back to the Elamite period of Iran.The Sialk ziggurat still stands today in the suburbs of Kashan after 7000 years. After world known Iranian historical cities such as Isfahan and Shiraz, Kashan is a common destination for foreign tourists due to numerous historical places.Kashan Province is renowned over the centuries for its ceramic tiles, potter) textiles, carpets and silk, Kashan is an attractive oasis town and also the birthplace of the famous poet Sohrab and the artist Sepehria. Kashan is also of interest for its connections with Shah Abbas it was favorite town of his, and he beautified it and asked to be buried here. There are a surprising number of things to see in and around Kashan, so it's an ideal place to stop for a day or two . Tabatabei House The Borujerdi House is a historic house in Kashan, Iran. The house was built in 1857 by architect Ustad Ali Maryam, for the wife of Seyyed Mehdi Borujerdi, a wealthy merchant.
    [Show full text]
  • See the Document
    IN THE NAME OF GOD IRAN NAMA RAILWAY TOURISM GUIDE OF IRAN List of Content Preamble ....................................................................... 6 History ............................................................................. 7 Tehran Station ................................................................ 8 Tehran - Mashhad Route .............................................. 12 IRAN NRAILWAYAMA TOURISM GUIDE OF IRAN Tehran - Jolfa Route ..................................................... 32 Collection and Edition: Public Relations (RAI) Tourism Content Collection: Abdollah Abbaszadeh Design and Graphics: Reza Hozzar Moghaddam Photos: Siamak Iman Pour, Benyamin Tehran - Bandarabbas Route 48 Khodadadi, Hatef Homaei, Saeed Mahmoodi Aznaveh, javad Najaf ...................................... Alizadeh, Caspian Makak, Ocean Zakarian, Davood Vakilzadeh, Arash Simaei, Abbas Jafari, Mohammadreza Baharnaz, Homayoun Amir yeganeh, Kianush Jafari Producer: Public Relations (RAI) Tehran - Goragn Route 64 Translation: Seyed Ebrahim Fazli Zenooz - ................................................ International Affairs Bureau (RAI) Address: Public Relations, Central Building of Railways, Africa Blvd., Argentina Sq., Tehran- Iran. www.rai.ir Tehran - Shiraz Route................................................... 80 First Edition January 2016 All rights reserved. Tehran - Khorramshahr Route .................................... 96 Tehran - Kerman Route .............................................114 Islamic Republic of Iran The Railways
    [Show full text]
  • Combinatorics, Linear Algebra and Graph Coloring ∞ the Proceedings of the Workshop Will Appear As a Special Issue of Discrete
    6th issue, August 14, 2003 Workshop on Combinatorics, Linear Algebra and Graph Coloring ∞ The proceedings of the workshop will appear as a special issue of Discrete Mathematics. All the papers will be fully refereed. Deadlines and directions for authors will be emailed to the participants after the conference. If you were a presenter make sure that we have your correct email and address on file. ∞ On Tuesday a copy of the book Orthogonal Arrays: Theory and Applications(Springer), by A.S. Hedayat, Neil J.A. Sloane, and John Stufken was raffled among students participating in the Workshop. The lucky winner was Mr. Masoud Khosravani Moghadam from Amir Kabir University. The book was donated by Professor Hedayat. ∞ Rick Wilson has a collection of 170 flutes and Peter Cameron plays the guitar and sings. ∞ The prize for Mr. Arash Noorghorbani will be a book signed by our key note speakers. 6th issue, August 14, 2003 Workshop on Combinatorics, Linear Algebra and Graph Coloring 6th issue, August 14, 2003 Workshop on Combinatorics, Linear Algebra and Graph Coloring Isfahan Location: Isfahan Province, 415 kms S of Tehran, 480 kms north of Shiraz The vast province of Isfahan, is located almost in the centre of Iran between Tehran and Fars. Although it is mostly arid, there are several high mountains (Mount. Karkas at 3899m) and rivers such as the Zayandeh Rud 1 that dominate its landscape. A large population lives in the numerous oases that mark the old caravan routes, which linked not only the northwest and southwest of Iran, but crossed the mountain cols to the south, towards Shiraz and the ports on the Persian Gulf.
    [Show full text]
  • New Report from Presence and Distribution of Allactaga Firouzi in Iran
    Journal of Ecology and the Natural Environment Vol. 2(12), pp. 281-283, December 2010 Available online at http://www.academicjournals.org/jene ISSN 2006- 9847 ©2010 Academic Journals Short Communication New report from presence and distribution of Allactaga firouzi in Iran Saeed Mohammadi1* and Gholamreza Naderi2 1Department of Environmental Sciences, Faculty of Energy and Environment, Sciences and Research Branch, Islamic Azad University, Tehran, Iran. 2Department of Environment, Islamic Azad University, Ardabil Branch, Iran. Accepted 29 October, 2010 The Iranian jerboa Allactaga firouzi (Womochel, 1978) is one of the rarest rodent species in the world and it has been reported exclusively from a single site in central Iran. Due to the lack of enough information on the ecology of this species, its conservation status was changed to “Data Deficient” category in late 2008. No additional data on A. firouzi was published since its first description by Womochel. Here we report the results of recent intensive survey work in south of Shah-Reza city that yielded several new localities for this species. New localities of A. firouzi were identified. Key words: Allactaga firouzi, Iran, Shah-Reza, data deficient. INTRODUCTION Iran is located in the Palearctic realm and is considered restricted to a village 18 miles south of Shah-Reza. We the center of origin for many of the world’s genetic found specimens after three-decade collection gap near resources. Although, the country’s natural resources the Mirabad village in 22 km Shah-Reza to Abadeh have been carelessly exploited over the past, environ- highway (31° 56’ 02’’ N, 52° 02’ 05’’E; 2198 m) (Figure 1).
    [Show full text]
  • Case Study of Isfahan City
    1970 Indian Journal of Science and Technology Vol. 5 No. 1 (Jan 2012) ISSN: 0974- 6846 Conservation of historic urban core in traditional Islamic culture: case study of Isfahan city Ali Assari1, T.M. Mahesh2 and Erfan Assari1 ¹Department of Civil Engineering, Isfahan Sciences and Research Branch, Islamic Azad University, Isfahan, Iran ²Institute of Development Studies, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka State, India [email protected] Abstract The main objectives of this study are to identify the land use pattern of historic urban core in frame work of traditional Islamic culture and find out the significance conservation of heritage areas surrounding the main city core. The methodology of this study was based on SWOT analyzes, for assessment of strengths, weaknesses, opportunities and threats of a city forms, for preparation of plan for conservation of heritage area in Islamic traditional urban core. The result of this study investigated existing limitations and strength. Main findings lead to a conclusion that the traditional frame of historic urban core is stronger than the new elements of city and without consideration to structure of traditional Iranian city, development plan is impossible. Keywords: Land use, Urban pattern, SWOT analyze, Iranian city, Conservation, Morphology Introduction Fig. 2. Model of modernized Islamic city. Source: Eckart Heritage is a part of cultural tradition of any society Ehlers (1991) (Nuryanti, 1996) and conservation of this is an important part of modern urban policies. For the past at least half a century, historic cities have acquired an incomparable status in modern culture for artistic events and cultural identity of people.
    [Show full text]
  • Iran March 2009
    COUNTRY OF ORIGIN INFORMATION REPORT IRAN 17 MARCH 2009 UK Border Agency COUNTRY OF ORIGIN INFORMATION SERVICE IRAN 17 MARCH 2009 Contents Preface Latest News EVENTS IN IRAN, FROM 2 FEBRUARY 2009 TO 16 MARCH 2009 REPORTS ON IRAN PUBLISHED OR ACCESSED BETWEEN 2 FEBRUARY 2009 TO 16 MARCH 2009 Paragraphs Background Information 1. GEOGRAPHY ......................................................................................... 1.01 Maps .............................................................................................. 1.03 Iran............................................................................................. 1.03 Tehran ....................................................................................... 1.04 2. ECONOMY ............................................................................................ 2.01 Sanctions ...................................................................................... 2.13 3. HISTORY ............................................................................................... 3.01 Calendar ........................................................................................ 3.02 Pre 1979......................................................................................... 3.03 1979 to 1999 .................................................................................. 3.05 2000 to date................................................................................... 3.16 Student unrest .............................................................................
    [Show full text]
  • Central Iran): Stratigraphy and Paleoenvironments
    Late Triassic and Early Cretaceous sedimentary sequences of the northern Isfahan Province 367 Boletín de la Sociedad GeolóGica Mexicana VoluMen 61, núM. 3, 2009, p. 367-374 D GEOL DA Ó E G I I C C O A S 1904 M 2004 . C EX . ICANA A C i e n A ñ o s Late Triassic and Early Cretaceous sedimentary sequences of the northern Isfahan Province (Central Iran): stratigraphy and paleoenvironments Maryam Mannani1,*, Mehdi Yazdi1 1 Department of Geology, University of Isfahan, Isfahan, Iran. * [email protected] Abstract This research gives a general outline of the Upper Triassic and Lower Cretaceous sequences cropping out north of Isfahan, Central Iran. Upper Triassic Nayband Formation subdivided into the Gelkan, Bidestan, Howz-e-Sheikh, Howz-e Khan and Qadir members. Two biostromal levels are documented in the Bidestan and Howz-e-Khan members. Due to a suitable condition in Late Triassic time including light, oxygen and nutrient, fauna such as: corals, sponges, hydrozoas, bivalves, gastropods, brachiopods, echinoderms and Dicroidium were flourished in water and flora on land. The first appearance of Heterastridium spp. in level of the Bidestan Member is apparently the first occurrence of this taxon in Central Iran. Qadir Member has several key beds, one key bed with land flora Cla- thropteris spp., and three key beds with bivalve Indopecten glabra, dating as Rhaetian Stage. An angular unconformity can be traced between Rhaetian sediments and red conglomerates and sandstones of Lower Cretaceous Sequences in Isfahan area which encompasses all Jurassic rocks. This gap can be related to Cimmerian tectonic phase.
    [Show full text]
  • Water Hardness Zoning of Isfahan Province, Iran, and Its Relationship With
    ArchiveDOI: http://dx.doi.org/10.22122/arya.v15i6.1715 of SID Published by Vesnu Publications This is an open an is This Water hardness zoning of Isfahan Province, Iran, and its relationship with cardiovascular mortality, 2013-2015 - access article distributed under the terms of the of the terms the under distributed article access Fereshte Hossienifar(1) , Mozhgan Entezari(2), Shidokht Hosseini(3) Original Article Abstract BACKGROUND: Cardiovascular disease (CVD) is one of the common diseases and today, it is considered as not only an important cause of mortality but also a significant aspect of health geography. The evidence presented in the literature indicates that hard water may reduce the cases of sudden death caused by CVDs because drinking water contains significant amounts of calcium and magnesium, which play a crucial role in the electrical activity of heart. Hence, the present study aimed at investigating the relationship between water hardness and CVD mortality rate in Isfahan, Iran. METHODS: In this ecological study, the available data regarding the cardiovascular mortality rate and water hardness have been used. Preparation of zoning map has been conducted using the Attribution Commons Creative Geographic Information System (GIS) software considering Inverse Distance Weighting (IDW) interpolation models. Moreover, statistical analysis has been conducted using SPSS software. any medium, provided the original work is properly cited. properly is work original the provided any medium, RESULTS: A reverse relationship was observed between cardiovascular mortality rate and water hardness. However, the observed relationship was not statistically significant (2013: r = -0.066, 2014: r = -0.155, 2015: r = -0.051, P > 0.050).
    [Show full text]
  • The Analysis of Changes in Urban Hierarchy of Isfahan Province in the Fifty-Year Period (1956-2006)
    International Journal of Social Science & Human Behavior Study– IJSSHBS Volume 3 : Issue 1 [ISSN 2374-1627] Publication Date: 18 April, 2016 The analysis of changes in urban hierarchy of Isfahan province in the fifty-year period (1956-2006) Hamidreza Joudaki, 1 Department of Geography and Urban planning, Islamic Azad University, Islamshahr branch,Tehran, Iran Abstract alive under the influence of inner development and The appearance of city and urbanism is one of the traditional relationship between city and village. Then, important processes which have affected social because of changing and continuing in inner regional communities .Being industrialized urbanism developed development and outer one which starts by promoting of along with each other in the history.In addition, they have changes in urbanism, and urbanization in the period of had simple relationship for more than six thousand years, Gajar government ( Beykmohammadi . et al , 2009 p:190). that is , from the appearance of the first cities . In 18th Research method century by coming out of industrial capitalism, progressive It is applied –developed research. The method which is development took place in urbanism in the world. used here is quantitative- analytical. The statistical In Iran, the city of each region made its decision by itself community is cites of Isfahan Province. Here, we are going and the capital of region (downtown) was the only central to survey the urban hierarchy and also urban network of part and also the regional city without any hierarchy, Isfahan during the fifty – year period.( 1956-2006). controlled its realm. However, this method of ruling during The data has been gathered from the Iran Statistical Site these three decays, because of changing in political, social and also libraries, and statistical centers.
    [Show full text]
  • IJMRHS-I-179-Corrected
    Available online at www.ijmrhs.com Special Issue 9S: Medical Science and Healthcare: Current Scenario and Future Development International Journal of Medical Research & ISSN No: 2319-5886 Health Sciences, 2016, 5, 9S:384-393 Epidemiologic description and therapeutic outcomes of cutaneous leishmaniasis in Childhood in Isfahan, Iran (2011-2016) Mujtaba Shuja 1,2, Javad Ramazanpour 3, Hasan Ebrahimzade Parikhani 4, Hamid Salehiniya 5, Ali Asghar Valipour 6, Mahdi Mohammadian 7, Khadijah Allah Bakeshei 8, Salman Norozi 9, Mohammad Aryaie 10 , Pezhman Bagheri 11 , Fatemeh Allah Bakeshei 12 , Turan Taghizadeh 13 and Abdollah Mohammadian-Hafshejani 14,15* 1 Researcher, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran 2 Researcher, School of Public Health, Iran University of Medical Sciences, Tehran, Iran 3 Researcher, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran 4 MSC Student, Department of Medical Parasitology and Mycology,school of public Health,Tehran University of Medical Sciences,Tehran,Iran 5 Zabol University of Medical Sciences, Zabol, Iran 6 MSc in Epidemiology, Abadan School of Medical Science, Abadan, Iran 7 Social Development & Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran 8 MSc in Midwifery, Faculty of Nursing and Midwifery, Dezful University of Medical Sciences, Dezful, Iran 9 Social Determinants of Health Research Center, Yasuj University of Medical Sciences, Yasuj, Iran 10 MSc in Epidemiology, Deputy of Research,
    [Show full text]
  • Durham E-Theses
    Durham E-Theses An analysis of population growth in Isfahan City since 1956 Noorbakhsh-Khiabani, Sohiela How to cite: Noorbakhsh-Khiabani, Sohiela (1977) An analysis of population growth in Isfahan City since 1956, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/10019/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk AN ANALYSIS OF POPULATION GROWTH IN ISFAHAN CITY SINCE 1956 by Sohiela Noorbakhsh-Khiabani A thesis presented for the degree of Master of Arts (Geography) University of Durham August 1977 The copyright of this thesis rests with the author. No quotation from it should be published without his prior written consent and information derived from it should be acknowledged. To my parents CONTENTS Page No. ABSTRACT ACKNOWLEDGEMENTS 11 INTRODUCTION REFERENCES CHAPTER 1 HISTORIAL REVIEW OF THE POPULATION OF ISFAHAN 1.
    [Show full text]