Synthesis of polystyrene-clay nanocomposites

被引：196

作者：

Fu, X ^{[1
]}

Qutubuddin, S ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA

来源：

MATERIALS LETTERS | 2000年 / 42卷 / 1-2期

关键词：

clay; polystyrene; dispersion; nanocomposites; montmorillonite; free radical polymerization;

D O I：

10.1016/S0167-577X(99)00151-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A reactive cationic surfactant vinylbenzyldimethyldodecylammonium chloride (VDAC) was synthesized for intercalation of montmorillonite (MMT), a smectic type of clay. Organophilic MMT was prepared by ion exchange between Na+ ions in the clay and VDAC cations in aqueous medium. VDAC-intercalated MMT particles were easily dispersed and swollen in styrene monomer. Polystyrene-clay nanocomposites were prepared by free radical polymerization of styrene containing dispersed clay. X-ray diffraction (XRD) and transmission electron microscopy (TEM) indicate that exfoliation of MMT was achieved. Palystyrene-clay nanocomposites have higher dynamic modulus than pure polystyrene (PS). (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：12 / 15

页数：4

共 23 条

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