One-step preparation of organosilica@chitosan crosslinked nanospheres

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37 Citations (Scopus)

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 languageEnglish
Pages (from-to)947-950
Number of pages4
JournalPolymer
Volume47
Issue number4
DOIs
Publication statusPublished - 8 Feb 2006

Keywords

  • Biopolymer
  • Core-shell nanospheres
  • Polymer composite materials

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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