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学科主题: 高分子化学
题名: Effects of comonomer sequential structure on thermal and crystallization behaviors of biodegradable poly(butylene succinate-co-butylene terephthalate)s poly(butylene succinate-co-butylene terephthalate); thermal properties
其他题名: 共聚单体序列对生物降解性聚对苯二甲酸丁二醇酯共聚丁二酸丁二醇酯的热物理与结晶性能影响
作者: Li FX(李发学) ; Xu XJ(许新建) ; Hao QH(郝庆辉) ; Li QB(李巧波) ; Yu JY(俞建勇) ; Cao AM(曹阿民)
通讯作者: 曹阿民
刊名: J. Polym. Sci. Pt. B-Polym. Phys.
发表日期: 2006-01-01
卷: 44, 期:12, 页:1635-1644
收录类别: SCI
部门归属: 东华大学; 中科院上海有机所
英文摘要: In this work, new investigations on the effect of comonomer sequential structure on the thermal and crystallization behaviors and biodegradability have been implemented for the biodegradable poly(butylene succinate-co-butylene terephthalate) (PBST) as well as aliphatic poly(butylene succinate) (PBS). At first, these copolyesters were efficiently synthesized from dimethyl succinate and/or dimethyl terephthalate and 1,4-butanediol via condensation polymerization in bulk. Subsequently, their molecular weights and macromolecular chain structures were analyzed by gel permeation chromatography (GPC) and nuclear magnetic resonance (NMR) spectroscopy. By means of differential scanning calorimeter (DSC) and wide-angle X-ray diffractometer (WAXD), thermal and crystallization behaviors of these synthesized aromatic-aliphatic copolyesters were further explored. It was demonstrated that the synthesized copolyesters were revealed to have random comonomer sequential structures with thermal and crystallization properties strongly depending on their comonomer molar compositions, and that crystal lattice structures of the new crystallizable copolyesters shifted from the monoclinic crystal of semicrystalline PBS to triclinic lattice of the poly(butylene terephthalate) (PBT) with increasing the terephthalate comonomer composition, and the minor comonomer components were suggested to be trapped in the crystallizable component domains as defects. In addition, the enzymatic degradability was also characterized for the copolyesters film samples. (c) 2006 Wiley Periodicals, Inc.
语种: 英语
相关网址: 查看原文
内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/22916
Appears in Collections:高分子材料研究室_期刊论文

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Recommended Citation:
Li FX,Xu XJ,Hao QH,et al. Effects of comonomer sequential structure on thermal and crystallization behaviors of biodegradable poly(butylene succinate-co-butylene terephthalate)s poly(butylene succinate-co-butylene terephthalate); thermal properties[J]. J. Polym. Sci. Pt. B-Polym. Phys.,2006,44(12):1635-1644.
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