Synthesis, thermal and radiation sensitivities of some linear aromatic polyesters

Choi, EJ, Hill, DJT, Kim, KY, ODonnell, JH, Pomery, PJ and Whittaker, AK (1999) Synthesis, thermal and radiation sensitivities of some linear aromatic polyesters. Polymer International, 48 10: 971-979. doi:10.1002/(SICI)1097-0126(199910)48:10<971::AID-PI256>3.0.CO;2-G


Author Choi, EJ
Hill, DJT
Kim, KY
ODonnell, JH
Pomery, PJ
Whittaker, AK
Title Synthesis, thermal and radiation sensitivities of some linear aromatic polyesters
Journal name Polymer International   Check publisher's open access policy
ISSN 0959-8103
Publication date 1999-01-01
Sub-type Article (original research)
DOI 10.1002/(SICI)1097-0126(199910)48:10<971::AID-PI256>3.0.CO;2-G
Volume 48
Issue 10
Start page 971
End page 979
Total pages 9
Place of publication Sussex, UK
Publisher John Wiley & Sons
Language eng
Subject C1
250502 Physical Chemistry of Macromolecules
780103 Chemical sciences
Abstract Two series of polyesters have been synthesized, one based on terephthalic acid and the other based on 2,6-naphthalene-dicarboxylic acid. Three diols were used: ethylene glycol, 1,4-butanediol and 1,10-decanediol. The polymers have been characterized and their thermal and radiation stabilities examined. The temperatures for 5% weight loss at a scanning rate of 20 degrees C min(-1) were in the range 376-424 degrees C. The stability of the polyesters decreased as the number of carbon atoms in the aliphatic diol increased, and the terephthalate polymers were not as stable as the naphthalate-based polymers. On radiolysis at 77 K about 50% of the radicals formed were anion radicals, with the total radical yields in the range 0.19-0.41 for the phthalate polyesters and in the range 0.08-0.12 for the naphthalate-based polymers. The radical yields increased with an increasing number of carbon atoms in the diol units. Radiolysis at 298 K produced radical yields in the range 0.02-0.06 for the phthalate polyesters and in the range 0.01-0.05 for the naphthalate-based polymers. (C) 1999 Society of Chemical Industry.
Keyword Polymer Science
Polyesters
Terephthalate Esters
Naphthalate Esters
Thermal Degradation
Gamma Radiolysis
Gamma-radiolysis
Degradation
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Wed, 11 Jun 2008, 00:11:51 EST