| PS-PMMA嵌段共聚物/PMMA在选择性溶剂中的自组装行为 |
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| 引用本文： | 尹芬芳,史林启,安英丽,张望清,何炳林,郭世宜. PS-PMMA嵌段共聚物/PMMA在选择性溶剂中的自组装行为[J]. 高等学校化学学报, 2003, 24(1): 160-164 |
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| 作者姓名： | 尹芬芳 史林启 安英丽 张望清 何炳林 郭世宜 |
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| 作者单位： | 1. 南开大学高分子化学研究所, 吸附分离功能高分子材料国家重点实验室;2. 南开大学高分子化学研究所生命科学学院, 天津 300071 |
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| 基金项目： | 国家自然科学基金 (批准号 :5 98730 12 ,5 0 2 730 15 )，教育部骨干青年教师基金资助 |
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| 摘 要： | 用动态光散射和透射电镜研究了嵌段共聚物聚苯乙烯-聚甲基丙烯酸甲酯(PS-b-PMMA)和其对应的均聚物聚甲基丙烯酸甲酯(PMMA)在选择性溶剂四氢呋喃/环己烷(THF/CYH)中的自组装行为.选择性溶剂对PS嵌段是良溶剂,对PMMA嵌段和均聚物PMMA是非良溶剂,实验结果表明,在适当的分子量及组成条件下,PS-PMMA/PMMA在选择性溶剂中形成了单分散的纳米胶束,均聚物PMMA与PMMA嵌段一同形成了胶束的核,通过控制均聚物PMMA的量可以在较大的范围内调整胶束的尺寸.
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| 关 键 词： | 聚甲基丙烯酸甲酯 嵌段共聚物 自组装 胶束 |
| 文章编号： | 0251-0790(2003)01-0160-05 |
| 收稿时间： | 2001-11-27 |
The Self-assembly Behavior of PS-PMMA/PMMA in Selective Solvents |
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| YIN Fen-Fang ,SHI Lin-Qi ,AN Ying-Li ,ZHANG Wang-Qing ,HE Bing-Lin ,GUO Shi-Yi. The Self-assembly Behavior of PS-PMMA/PMMA in Selective Solvents[J]. Chemical Research In Chinese Universities, 2003, 24(1): 160-164 |
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| Authors: | YIN Fen-Fang SHI Lin-Qi AN Ying-Li ZHANG Wang-Qing HE Bing-Lin GUO Shi-Yi |
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| Affiliation: | 1. State Key Laboratory of Functional Polymer Materials for Adsorption and Separation, Institute of Polymer Chemistry;2. College of Life Science, Nankai University, Tianjin 300071, China |
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| Abstract: | The self-assembly of PS-PMMA/PMMA in selective solvents was studied by dynamic laser light scattering(DLS) and transmission electron microscope(TEM). The selective solvent was the good solvent for PS block while it was a precipitant for PMMA block and homopolymer. The results showed that the PS-PMMA/PMMA with a proper molecular weight and composition could self-assemble into micelles with mono-dispersity distribution. The homopolymer(PMMA) could assemble into the core of the micelles by a special interaction with the block PMMA and accelerate the process of the micellization. The micelles with different sizes can be obtained conveniently by adjusting the content of the homopolymer. |
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| Keywords: | Poly(methyl methacrylate) Block-copolymer Self-assembly Micelle |
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