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 -NH2groups as the shell materials.
Original language | English |
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Pages (from-to) | 947-950 |
Number of pages | 4 |
Journal | Polymer |
Volume | 47 |
Issue number | 4 |
DOIs | |
Publication status | Published - 8 Feb 2006 |
Keywords
- Biopolymer
- Core-shell nanospheres
- Polymer composite materials
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics