Isomorphism in Poly(butylene succinate-co-butylene fumarate) and Its Application as Polymeric Nucleating Agent for Poly(butylene succinate)
Isomorphism in Poly(butylene succinate-co-butylene fumarate) and Its Application as Polymeric Nucleating Agent for Poly(butylene succinate)
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聚(丁二酸丁二醇酯-富马酸丁二醇酯)的同晶性及其作为聚(丁二酸丁二醇酯)聚合物成核剂的应用
DOI：
10.1021/ma300685f
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发表时间：
2012-07-24
期刊：
影响因子：
5.5
通讯作者：
Guo, Bao-Hua
中科院分区：
文献类型：
--
作者：
Ye, Hai-Mu;Wang, Rui-Dong;Guo, Bao-Hua
DSC 和广角 X 射线衍射结果揭示了聚（琥珀酸丁二醇酯-富马酸丁二醇酯）（PBSF）中丁二酸丁二醇酯和富马酸丁二醇酯之间的严格同构。它们采用相同的晶型，仅晶格参数略有差异。共聚物的熔点随着富马酸丁二醇酯摩尔比的增加而线性增加，熔融焓几乎没有变化，满足严格同构的要求。在PBS中引入不饱和共聚单体富马酸可以提高总结晶速率和球晶的径向生长速率。因此，PBF 和 PBSF 是 PBS 及其共聚物的高效聚合物成核剂。本工作中，严格同构现象为我们寻找高分子成核剂提供了新的方法。
Strict isomorphism between butylene succinate and butylene fumarate in poly(butylene succinate-co-butylene fumarate) (PBSF) was revealed by DSC and wide-angle X-ray diffraction results. They adopt the same crystal modification, with only a little difference in crystal lattice parameters. The melting point of the copolymer increases linearly with increasing molar ratio of butylene fumarate and the melting enthalpy hardly changes, which meet the requirement of strict isomorphism. The introduction of unsaturated comonomer, fumaric acid, into PBS can enhance the total crystallization rate and the radial growth rate of spherulites. Consequently, PBF and PBSF are highly efficient polymeric nucleating agents for PBS and its copolymers. In this work, strict isomorphism provides us a new method to find polymeric nucleating agent.