Shape memory and physical properties of poly(ethyl methacrylate)/Na-MMT nanocomposites prepared by macroazoinitiator intercalated in Na-MMT

被引：41

作者：

Kim, Min Seok ^{[1
]}

Jun, Jae Kyung ^{[1
]}

Jeong, Han Mo ^{[1
]}

机构：

[1] Univ Ulsan, Dept Chem, Ulsan 680749, South Korea

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2008年 / 68卷 / 7-8期

关键词：

polymer-matrix composites; thermomechanical properties; transmission electron microscopy; X-ray diffraction; shape memory;

D O I：

10.1016/j.compscitech.2007.12.015

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A macroazoinitiator (MAI) containing a poly(ethylene glycol) (PEG) segment was intercalated in the gallery of sodium montmorillonite (Na-MMT) and this intercalated MAI was used in the preparation of Na-MMT/poly(ethyl methacrylate) (PEMA) nanocomposites via in situ radical polymerization of ethyl methacrylate. The X-ray diffraction pattern and the morphology observed with a transmission electron microscope showed that Na-MMT intercalated with a PEG segment was heterogeneously dispersed in the polymer matrix. Thus Na-MMT intercalated with a PEG segment effectively enhanced the mechanical properties of PEMA. Shape memory behavior and theological properties showed that Na-MMT intercalated with a PEG segment performed its role as a physical crosslinker effectively even with 1.2 wt% of Na-MMT. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1919 / 1926

页数：8

共 43 条

[11] Shape memory polymer nanocomposites [J].