A novel method for the synthesis of polystyrene-graft-silica particles using random copolymers based on styrene and triethoxyvinylsilane

被引：22

作者：

Agudelo, Natalia A. ^{[2
]}

Perez, Leon D. ^{[1
,2
]}

Lopez, Betty L. ^{[2
]}

机构：

[1] Univ Antioquia, Dept Mat Engn, Medellin, Colombia

[2] Univ Antioquia, Inst Chem, Grp Ciencia Mat, Medellin, Colombia

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 20期

关键词：

Silica; Random copolymers; Hybrid materials; Polystyrene-grafted silica particles; REACTIVITY RATIO; NANOPARTICLES; POLYMERIZATION; BEHAVIOR; ACID;

D O I：

10.1016/j.apsusc.2011.05.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present research, random copolymers based on triethoxyvinylsilane (TEVS) and styrene (St) are synthesized and structurally characterized. According to the reactivity ratios of the monomers determined by infrared analysis; St tends to form blocks whilst TEVS is expected to be incorporated as isolated units. A sample of poly(styrene-co-triethoxyvinylsilane) synthesized at low conversion using a monomer feeding ratio St:TEVS of 2:3 was used as macrosilane in the synthesis of polystyrene-g-silica particles. The grafting reaction was confirmed by infrared spectroscopy, thermogravimetric analysis and by the evaluation of the morphological characteristics of the hybrid particles. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：8581 / 8586

页数：6

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