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Preparation of a Novel Copolymer of Hyperbranched Polyglycerol with Multi-arms of Poly(N-isopropylacrylamide)

✍ Scribed by Mugang Pan; Decheng Wan; Junlian Huang

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
115 KB
Volume
28
Category
Article
ISSN
0256-7660

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✦ Synopsis

Abstract

A novel copolymer (PG‐PNIPAM) composed of polyglycerol (PG) as core and poly(N‐isopropylacrylamide) (PNIPAM) as arms was prepared by the radical addition‐fragmentation transfer polymerization (RAFT) of NIPAM in the presence of PG with multi‐trithiolcarbonate groups (PG‐TTC). The results showed that the RAFT polymerization was controllable and nearly all trithiolcarbonates groups on PG took part in the polymerization. The final PG‐PNIPAM copolymer showed a thermally dependent hydrophobic/hydrophilic transition around 28–30°C.

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