期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 122, 期 1, 页码 105-111出版社
WILEY
DOI: 10.1002/app.33881
关键词
crystallization; morphology; thermal properties
资金
- National Natural Science Foundation, China [20774013, 20974012]
- Fundamental Research Funds for the Central Universities [ZZ1005]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT0706]
The crystallization, melting behavior, and spherulitic growth kinetics of biodegradable poly(ethylene succinate-co-6 mol % butylene succinate) [P(ES-co-6 mol % BS)] were investigated and compared with those of the homopolymer poly(ethylene succinate) (PES) in this work. The crystal structure of P(ES-co-6 mol % BS) was the same as that of neat PES, but the crystallinity decreased slightly because of the incorporation of the butylene succinate content. The glass-transition temperature decreased slightly for P(ES-co-6 mol % BS) compared to that for neat PES. The melting point of P(ES-co-6 mol % BS) decreased apparently; moreover, the equilibrium melting point was also reduced. Two melting endotherms were found for P(ES-co-6 mol % BS) after isothermal crystallization; this was ascribed to the melting, recrystallization, and remelting mechanism. The spherulitic growth rate of P(ES-co-6 mol % BS) was slower than that of neat PES at a given crystallization temperature. Both neat PES and P(ES-co-6 mol % BS) exhibited a crystallization regime II to III transition; moreover, the crystallization regime transition temperature of P(ES-co-6 mol % BS) shifted to a low temperature compared with that of neat PES. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122: 105-111, 2011
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