One-Pot Synthetic Strategy to Core Cross-Linked Micelles with pH-Sensitive Cross-Linked Cores and Temperature-Sensitive Shells through RAFT Polymerization

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Contents Vol 59(10)

doi:10.1071/CH06246

One-Pot Synthetic Strategy to Core Cross-Linked Micelles with pH-Sensitive Cross-Linked Cores and Temperature-Sensitive Shells through RAFT Polymerization

Li-Ping Yang ^A, Cai-Yuan Pan ^A ^B

^A Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
^B Corresponding author. Email: pcy@mail.ustc.edu.cn





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Australian Journal of Chemistry 59(10) 733–736 http://dx.doi.org/10.1071/CH06246
Submitted: 14 July 2006 Accepted: 19 September 2006 Published online: 30 October 2006

Abstract

Functional micelles with a poly(N-isopropylacrylamide) (PNIPAM) shell and a cross-linked poly((acrylic acid)-co-(ethylene glycol diacrylate)) core have been successfully prepared in one pot by the reversible addition–fragmentation chain transfer (RAFT) copolymerization of acrylic acid and ethylene glycol diacrylate in selective solvent using PNIPAM-SC(S)Ph as a RAFT agent. Since PNIPAM and poly(acrylic acid) are temperature- and pH-sensitive polymers, respectively, the micelles obtained should display double environmental sensitivity to temperature and pH in water.