Heat Capacity and Other Thermodynamic Properties of Linear Macromolecules. VII. Other Carbon Backbone Polymers Cite as: Journal of Physical and Chemical Reference Data 12, 29 (1983); https://doi.org/10.1063/1.555677 Published Online: 15 October 2009 Umesh Gaur, Brent B. Wunderlich, and Bernhard Wunderlich ARTICLES YOU MAY BE INTERESTED IN Heat capacity and other thermodynamic properties of linear macromolecules. II. Polyethylene Journal of Physical and Chemical Reference Data 10, 119 (1981); https:// doi.org/10.1063/1.555636 Heat Capacity and Other Thermodynamic Properties of Linear Macromolecules. VIII. Polyesters and Polyamides Journal of Physical and Chemical Reference Data 12, 65 (1983); https:// doi.org/10.1063/1.555678 Heat Capacity and Other Thermodynamic Properties of Linear Macromolecules. V. Polystyrene Journal of Physical and Chemical Reference Data 11, 313 (1982); https:// doi.org/10.1063/1.555663 Journal of Physical and Chemical Reference Data 12, 29 (1983); https://doi.org/10.1063/1.555677 12, 29 © 1983 American Institute of Physics for the National Institute of Standards and Technology. Heat Capacity and Other Thermodynamic Properties of Linear Macromolecules. VII. Other Carbon Backbone Polymers Umesh Gaur, Brent B. Wunderlich, and Bernhard Wunderlich Department o/Chemistry, Rensselaer Polytechnic Institute, Troy, New York 12181 The heat capacity of poly-I-butene, poly-I-pentene, poly-I-hexene, polyisobutylene, poly(4-methyl~I-penten~),polybutadiene,cis-I, 4~poly(2-~~hY!l?utadi~~~112Q!y~y~lQpen­ iene, poTy(vinyfftuoride), polY(Vlnylidene fiuoride)~--polytrifluoroethylene, polytetrafluor­ oethylene, poly(vinyl chloride), poly(vinylidene chloride), polychlorotrifluoroethylene, poly(vinyl alcohol), poly(vinyl acetate), poly(a-methylstyrene), poly(o-methylstyrene), po­ ly(o-chlorostyrene) and a series of poly(vinyl benzoate)s is reviewed on the basis of 62 measurements reported in the literature. A set of recommended data has been derived for each polymer. Entropy and enthalpy functions have been calculated for poly-l-hexene, polyisobutylene, cis-I, 4-poly(2-methylbutadiene), poly(vinyl chloride), and poly(a-meth­ ylstyrene}. This paper is seventh in a series which will ultimately cover all heat capacity measurements on linear macromolecules. Key words: enthalpy; entropy; fusion; glass transition; halogenated polymex:~; heat capacity; lineal· macromolecule; polyalkenes; polybenzoates; polystyrenes; vinyl polymers; vin}'lidene polymers. Page Page 1. Introduction ........................................................ 31 3. Conclusions .......................................................... 61 2. Heat Capacity of Other Carbon Backbone Poly- 4. References... ............. ........................................ .... 62 mers.................................................................... 31 2.1. Introduction ........... ... ....... .... ........ ........ ...... 31 2.2. Recommended Heat Capacity Data and Thermodynamic Functions ........................ 34 List of Tables 2.2.1. Poly-I-butene ................................. 34 Table 1. Crystal structures and thermal properties of 2.2.2. Poly-l-pentene ............................... 36 various vinyl polymers ........ ............. ...... ..... 32 2.2.3. Poly-l-hexene .................................. 37 Table 2. Heat capacity measurements of poly-I-bu,. 2.2.4. Polyisobutylene .............................. 38 tene ............................................................. 34 2.2.5. Poly(4-methyl-l-pentent:} ............... 39 Table 3. Recommended heat capacity data for semi­ 2.2.6. 1, 4-Polybutadiene .; ....................... 41 crystalline poly-I-butene below the glass 2.2.7. cis-I, 4-Poly(2-methylbutadiene) .... 41 transition... ..... ........................ ............ ......... 35 2.2.8. Polycyc1opentene ........................... 43 Table 4. Recommended heat capacity data for mol- 2.2.9. Poly(vinyl fluoride) ......................... 43 ten poly-I-butene ......... ..... ..... ..................... 35 2.2.10. Poly(vinylidene fluoride) ................ 45 Table 5. Heat capacity measurements of poly-I-pen- 2.2.11. Polytrifluoroethylene ..................... 46 tene ............................................................. 36 2.2.12. Polytetrafluoroethylene .................. 47 Table 6. Recommended heat capacity data for poly­ 2.2.13. Poly(vinyl chloride) ........................ 49 I-pentene below the glass transition .. ......... 36 2.2.14. Poly(vinylidene chloride) ................. 52 Table 7. Recommended heat capacity data for mol- 2.2.15. Polychlorotrifluoroethylene ............ 54 ten poly-I-pentene ...................................... 37 2.2.16. Poly(vinyl alcohol) ......................... 54 Table 8. Heat capacity measurements of poly-I-hex- 2.2.17. Poly(vinyl acetate) .......................... 56 ene ............................................................... 37 2.2.18. Poly(a-methystyrene) ..................... 58 Table 9. Recommended thermodynamic data for 2.2.19. Poly(o-methylstyrene) and amorphous poly-I-hexene ........................... 38 Poly(o-chlorostyrene) .. :.................. 59 Table 10. Heat capacity measurements of polyisobu- 2.2.20. Poly(vinyl benzoate)s ...................... 60 tylene .......................................................... 38 Table 11. Recommended thermodynamic data for po- © 1983 by the U.S. Secretary of Commerce on behalf of the United States. This copyright is assigned to the American Institute of Physics and the lyisobutylene ............................................... 39 American Chemical Society. Table 12. Heat capacity measurements of poly(4- Reprints available from ACS; see Reprint List at back of issue. methyl-I-pentene) ............... ......... ..... .......... 40 0047-2689/83/010029-35/$07.00 29 J. Phys. Chem. Ref. Data, Vol. 12, No.1, 1983 30 GAUR, WUNDERLICH, AND WUNDERLICH Page Page Table 13. Recommended heat capacity data for Table 40. Heat capacity measurements of poly(a- poly(4-methyl-l-pentene) below the glass . methylstyrene) ............................................ 57 transition .. ....... ..... ........... ............................ 40 Table 41. Recommended thermodynamic data for 'Table 14. Heat capacity measurements of 1,4-polybu- amorphous poly(a-methylstyrene) .............. 58 tadiene ......................................................... 41 Table 42. Recommended heat capacity data for po­ Table 15. Heat capacity of two 1,4-polybutadienes .... 41 ly(o-methylstyrene) and poly(o-chlorostYr;. Table 16. Heat capacity measurements of cis-1,4- ene) ................................................................ 59 poly(2-methylbutadiene) ............................. 42 Table 43. Heat capacity measurements of poly(vinyl Table 17. Recommended thermodynamic data for benzoate) ..................................................... 59 a.mQIphous~i~-.1,+poly(2:m~thylbutadi.ene). 42 Table--44. lIeat-capacity-measurements-of poly(vinyl- Table 18. Recommended heat capacity data for amor­ p-ethyl benzoate) ......................................... 60 phous polycyclopentene below the glass Table 45. Heat capacity measurements of poly(vinyl- transition ... ..... ......... ......... ..... ..... ............ ..... 43 p-isopropylbenzoate) ..... ..... ......................... 60 Tahle 19. Recommended heat capacity data for mol- Table 46. Heat capacity measurements of poly(vinyl- ten polycyclopentene .................................. 43 p-tert-butylbenzoate) .................................. 60 Table 20. Heat capacity measurements of poly(vinyl Table 47. Recommen~ed heat capacity data for poly­ fluoride) ....................................................... 44 (vinyl benzoate)s below the glass transition .. 61 Table 21. Recommended heat capacity data for poly­ Table 48. Recommended heat capacity data for mol- (vinyl fluoride) below the glass transition ... 44 ten poly(vinyl benzoate)s ............................. 61 Table 22. Heat capacity measurements of poly(vinyli- Table 49. Heat capacity change at the glass transition. 62 dene fluoride) ............ ............... ...... ............. 45 Table 23. Recommended heat capacity data for poly­ List of Tables Deposited in PAPSa (vinylidene tluoride) below the glass transi- Table AI. Heat capacity of poly-I-butene below the tion .............................................................. 46 glass transition l'-able 24.···Heat--capacity-measurements--of.-polytri- Taole---:t\:2~- Hear capacIty of~various-poly';' 1~ljutenes tluoroethylene ... .......... ....... ............ ............. 46 above the glass transition Table 25. Recommended heat capacity data for poly­ Table A3. Heat capacity of various molten poly-l­ tritluoroethylene below the glass transition .. 47 butenes Table 26. Heat capacity measurements of poly tetra- Table A4. Heat capacity of various poly-1-pentenes tluoroethylene ............ ......... ..... .......... ......... 48 below the glass transition Table 27. Heat capacity of polytetratluoroethylene at Table A5. Heat capacity of various poly-l-pentenes low temperatures ..................... .............. ..... 48 above the glass transition Table 28. Heat capacity of various polytetrafluoroeth- Table A6. Heat capacity of various molten poly-1- ylenes .......................................................... 49 pentenes Table 29. Heat capacity of measurements of poly- Table A7. Heat capacity of various poly-1~hexenes (vinyl chloride) ............................................ 50 Table A8. Heat