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Crosslinking and biodegradation of poly(butylene succinate) prepolymers containing itaconic or maleic acid units in the main chain
Author(s) -
Teramoto Naozumi,
Ozeki Mayuka,
Fujiwara Ikue,
Shibata Mitsuhiro
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.21393
Subject(s) - itaconic acid , maleic acid , succinic acid , polybutylene succinate , biodegradation , polymer chemistry , differential scanning calorimetry , polyester , materials science , condensation polymer , crystallinity , polymer , chemistry , organic chemistry , copolymer , composite material , physics , thermodynamics
Poly(butylene succinate)‐based prepolymers containing itaconic acid units or maleic acid units in the main chain were synthesized through the condensation reaction of 1,4‐butanediol, succinic acid, and itaconic acid or maleic acid. The resulting prepolymers, with weight‐average molecular weights in the several thousands, were cured at 115°C with benzoyl peroxide to produce crosslinked polyesters that were insoluble in chloroform. Differential scanning calorimetry analysis revealed that the glass‐transition temperature rose with crosslinking and that the melting temperature and heat of melting decreased with crosslinking. These results implied that crosslinking was successfully carried out and that the crystallinity of the polymer decreased. The crosslinked polymer showed lower biodegradability in the biochemical oxygen demand assay with activated sludge but retained some biodegradability. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 95: 1473–1480, 2005