| Studies on Micellization of a Polystyrene-b-poly(acrylic acid) Copolymer in Aqueous Media by Pyrene Fluorescence |
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| 引用本文： | Zhi Huai SI,Guo Chang WANG*,He Xian LI,Jia Long YUAN,Bing Lin HE State Key Laboratory of Functional Polymer Materials for Adsorption and Separation and Institute of Polymer Chemistry,Nankai University,Tianjin 300071. Studies on Micellization of a Polystyrene-b-poly(acrylic acid) Copolymer in Aqueous Media by Pyrene Fluorescence[J]. 中国化学快报, 2003, 14(1) |
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| 作者姓名： | Zhi Huai SI Guo Chang WANG* He Xian LI Jia Long YUAN Bing Lin HE State Key Laboratory of Functional Polymer Materials for Adsorption and Separation and Institute of Polymer Chemistry Nankai University Tianjin 300071 |
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| 作者单位： | Zhi Huai SI，Guo Chang WANG*，He Xian LI，Jia Long YUAN，Bing Lin HE State Key Laboratory of Functional Polymer Materials for Adsorption and Separation and Institute of Polymer Chemistry，Nankai University，Tianjin 300071 |
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| 基金项目： | the National Natural Science Foundation of China (Grant No.29574165，29928003，29874019)，Key Science and the Natural Science Foundation of Tianjin (013604011). |
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| 摘 要： | The aggregation of amphiphilic block copolymers is a crucial phenomenon that controls various applications, and has been extensively treated in the literature1-3. Pyrene is a widely used fluorescence probe for the relative intensities of the vibrational fine structure (five bands) of its fluorescence spectra have been found to be sensitive to the polarity of its environment, the so-called Ham effect4. We report the studies of the aggregation properties of a PS-b-PAA copolymer using pyrene …
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Studies on Micellization of a Polystyrene-b-poly(acrylic acid) Copolymer in Aqueous Media by Pyrene Fluorescence |
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| 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) |
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| Authors: | Zhi Huai SI Guo Chang WANG He Xian LI Jia Long YUAN Bing Lin HE |
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| Abstract: | Pyrene probe and TEM have been employed to investigate the behavior of a polystyrene-b-poly(acrylic acid) (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 of the morphological change of micellar cores. Annealing at a temperature higher than the glass transition temperature (Tg) of PS leads to densification of the hydrophobic core. |
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| Keywords: | Polystyrene-b-poly(acrylic acid) micelle fluorescence pyrene. |
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