Nanoscale-confined crystallization in epoxy resin and polyethylene-block-poly(ethylene oxide) diblock copolymer blends

被引：0
|
作者：
Yi Hongling
Wang Xilin
Wei Ting
Lin Heng
Zheng Baicun
机构：
[1] East China University of Science and Technology,Research and Development Center for Advanced Sports Materials
来源：
Colloid and Polymer Science | 2012年 / 290卷
关键词：
Polymer blends; Polyethylene-; poly(ethylene oxide); Epoxy resin; Crystallization kinetics;
D O I：
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中图分类号：
学科分类号：
摘要：
In this paper, the nanoscale-confined crystallization behavior and crystallization kinetics in blends of double-crystalline polyethylene-block-poly(ethylene oxide) (PE-b-PEO) diblock copolymer with diglycidyl ether of bisphenol A epoxy resin were investigated. The results showed that there appeared three crystallization regimes related to the crystallization of the PE block within three different microenvironments in the epoxy resin/PE-b-PEO blends. The Avrami index n is around 1.8–2.4, suggesting PE block of the copolymer in the blends exhibited nanoscale-confined crystallization behavior by homogeneous nucleation. The PE block nanoscale-confined crystallization is ascribed to the formation of the strong intermolecular hydrogen bonding interaction between hydroxyl groups of amine-cured epoxy and ether oxygen atoms of PEO, as seen from Fourier transform infrared spectroscopy spectra.
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页码：1347 / 1352
页数：5
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