writer：Liang Rong, Chen Yichun, Zhang Chunqiu, Yin Jing, Liu Xuelei, Wang Lukai, Kong Rui, Feng Xin, Yang J
keywords：Crystallization kinetics; Epitaxial growth; Poly(ethylene adipate); Nucleating agent
source：期刊
specific source：Chinese Journal of Polymer Science
Issue time：2017年

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.