Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27015
Title: One-step preparation of organosilica@chitosan crosslinked nanospheres
Authors: Fei, B 
Lu, H
Xin, JH 
Keywords: Biopolymer
Core-shell nanospheres
Polymer composite materials
Issue Date: 2006
Publisher: Elsevier
Source: Polymer, 2006, v. 47, no. 4, p. 947-950 How to cite?
Journal: Polymer (United Kingdom) 
Abstract: 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 nm, 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.
URI: http://hdl.handle.net/10397/27015
ISSN: 0032-3861
EISSN: 1873-2291
DOI: 10.1016/j.polymer.2005.12.063
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