One-step preparation of organosilica@chitosan crosslinked nanospheres

被引：41

作者：

Fei, B ^{[1
]}

Lu, HF ^{[1
]}

Xin, JH ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Nanotechnol Ctr, Hong Kong, Hong Kong, Peoples R China

来源：

POLYMER | 2006年 / 47卷 / 04期

关键词：

polymer composite materials; core-shell nanospheres; biopolymer;

D O I：

10.1016/j.polymer.2005.12.063

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A one-step way to prepare organosilica@chitosan crosslinked nanospheres was developed through self-assembly of amphiphilic copolymers synthesized by concurrent grafting polymerization and sol-gel reaction. The core organosilica was formed by hydrolysis and condensation of an alkyloxosilane-3-(trimethoxysilyl) propyl methacrylate (TMSPM) that was simultaneously polymerized using chitosan/tert-butyl hydroperoxide (TBHP) as redox-pair initiator. The well-defined nanospheres had adjustable sizes below 100 urn, and had not harmful residues impeding medical applications. This synthesis method simplified the preparation of silica @polymer spheres by eliminating the previous core-forming step, and could apply many water-soluble biopolymers containing -NH2 groups as the shell materials. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：947 / 950

页数：4

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