Crystallization behavior of biodegradable poly(ethylene adipate) modulated by a benign nucleating agent: Zinc phenylphosphonate

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• 作者：Rong Liang ; Yi-chun Chen ; Chun-qiu Zhang ; Jing Yin…
• 关键词：Crystallization kinetics ; Epitaxial growth ; Poly(ethylene adipate) ; Nucleating agent
• 刊名：Chinese Journal of Polymer Science
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：35
• 期：4
• 页码：558-568
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials; Condensed Matter Physics;
• 出版者：Chinese Chemical Society and Institute of Chemistry, CAS
• ISSN：1439-6203
• 卷排序：35

文摘

Zinc phenylphosphonate (PPZn), a benign and biocompatible nucleating agent, was prepared and incorporated into the biodegradable poly(ethylene adipate) (PEA) to investigate its effect on the crystallization behavior, crystallization kinetics and spherulite morphology of PEA. Upon addition of PPZn, the crystallization temperature and crystallinity of PEA in the non-isothermal crystallization process increased significantly. Analysis of crystallization kinetics by Avrami equation suggests that the crystallization time shortened greatly and crystallization rate increased markedly after addition of PPZn. In the presence of PPZn, the spherulite size decreased and spherulite density increased significantly. It suggests that PPZn is an efficient nucleating agent for the crystallization of PEA. The accelerated crystallization in the presence of PPZn is mainly attributed to the epitaxial nucleation of PEA crystals on the surface of PPZn crystals, that is, a perfect lattice matching between PEA crystal and PPZn crystal occurs.