Citation: Zhi Huai SI, Guo Chang WANG, He Xian LI, Jia Long YUAN, Bing Lin HE. Studies on Micellization of a Polystyrene-b-poly(acrylic acid) Copolymer in Aqueous Media by Pyrene Fluorescence[J]. Chinese Chemical Letters, ;2003, 14(1): 39-42. shu

Studies on Micellization of a Polystyrene-b-poly(acrylic acid) Copolymer in Aqueous Media by Pyrene Fluorescence

State Key Laboratory of Functional Polymer Materials for Adsorption and Separation and Institute of Polymer Chemistry, Nankai University, Tianjin 300071

Received Date: 18 March 2002

Fund Project: Key Science and the Natural Science Foundation of Tianjin (013604011).We wish to express our great thanks to the National Natural Science Foundation of China (Grant No.29574165, 29928003, 29874019)

Pyrcnc probc and TEM have been employed to investigate the behavior of a polystyrenc-b-poly(acrylic aeid) (PS-b-PAA) copolymer in aqueous solution. A significant annealing temperature effect on the I₁/I₃ ratio of pyrene was observed and was interpreted in terms ofthe morphological change ofmicellar cores. Anncaling at a temperature higher than the glass transition temperature (T_g) of PS leads to densification ofthe hydrophobic core.
- Polystyrenc-b-poly(acrylic acid),
- mieelle,
- fluorcseenee,
- pyrene
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