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Formation of Thermoresponsive Poly(N-isopropylacrylamide)/Dextran Particles by Atom Transfer Radical Polymerization

✍ Scribed by Dong Jin Kim; Jin-young Heo; Kwang Soo Kim; Insung S. Choi

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
186 KB
Volume
24
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Thermoresponsive poly(N‐isopropylacrylamide)/dextran hybrid particles were formed by surface‐initiated, aqueous atom transfer radical polymerization via the attachment of a polymerization initiator onto dextran microspheres and polymerization of N‐isopropylacrylamide. The resulting hybrid particles were about 250 μm in diameter, and showed thermoresponsiveness: the average diameter changed from 273 μm to 214 μm when the temperature was increased from 25 °C to 40 °C (22% decrease).

Schematic description of the procedure.

magnified imageSchematic description of the procedure.

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