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; Cai-Yuan Pan

doi:10.1071/CH06246

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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 and Cai-Yuan Pan ^A ^B

+ Author Affiliations

- Author Affiliations

^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

Australian Journal of Chemistry 59(10) 733-736 https://doi.org/10.1071/CH06246
Submitted: 14 July 2006 Accepted: 19 September 2006 Published: 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.

Acknowledgments

This work is supported by the National Natural Science Foundation of China under contract no. 20374048 and 20234020.

References

^A The polymeric micelles were dissolved in distilled water, and an aqueous solution with concentration of 1 mg mL^–1 was prepared. The transmittance was measured on a UV-vis transmittance instrument at a wavelength of 500 nm using a thermostatically controlled cuvette.

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

Abstract

Acknowledgments

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