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A Novel Route to Organic–Inorganic Hybrid Nanomaterials

✍ Scribed by Bindushree Radhakrishnan; Andrew N. Constable; William J. Brittain

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
313 KB
Volume
29
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

The in situ formation of functionalized silica nanoparticles is reported. The reactive stabilizers used in the study, [3‐(2‐bromoisobutyryl)propyl]triethoxysilane and [3‐(2‐bromoisobutyryl)propyl]ethoxydimethylsilane, have an atom transfer radical polymerization (ATRP) initiator at the noncondensable end. Condensation with tetraethoxysilane yields silica nanoparticles with a surface‐immobilized initiator. The size of these functionalized silica nanoparticles can be controlled by varying the time of initiator addition and initiator concentration. The silica particle sizes ranged from 10 to 300 nm. With the initiator functionalized silica nanoparticles, ATRP synthesis was performed with styrene, tert‐butyl acrylate, and methyl acrylate to produce organic–inorganic nanomaterials.

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