Confined crystallization behavior of PEO in organic networks

被引：35

作者：

Jiang, SC ^{[1
]}

Qiao, CD ^{[1
]}

Tian, SZ ^{[1
]}

Ji, XL ^{[1
]}

An, LJ ^{[1
]}

Jiang, BZ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

POLYMER | 2001年 / 42卷 / 13期

关键词：

PEO confined crystallization behavior; PTMPTMA networks;

D O I：

10.1016/S0032-3861(01)00026-X

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly (ethylene oxide) (PEO) and poly (trimethopropane trimethacrylate) (PTMPTMA) interpenetrate networks have been synthesized. The confined crystallization behavior of PEO in the PTMTYTMA networks has been investigated by a differential scanning calorimeter and scanning electron microscope. The degree of PEO crystallinity in PEO/PTMPTMA interpenetrate networks reduces with the increase of PTMPTMA. PEO is in an amorphous state when the concentration of PEO is lower than 50% in the interpenetrate networks system. The melting points of crystalline PEO in the networks are lower than that of pure PEG, and the melting point of PEO in the networks is higher and increases with the increase of PEO in the interpenetrate networks. Wide-angle X-ray diffraction results show that the PEO crystallite size perpendicular to the (120) plane is not affected as much as PEO in silica networks. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：5755 / 5761

页数：7

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