三嵌段共聚物刷诱导乳液自组装制备响应性多孔结构色微球。 Preparation of Stimuli-responsive Structural Colored Porous Microspheres via Emulsion Self-assembly Induced by Bottlebrush Triblock Copolymers

高分子学报 Pub Date : 2021-09-08 DOI:10.11777/j.issn1000-3304.2021.21146

李玉莲,宋东坡,李悦生

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引用次数: 0

摘要

我们近期报道了两亲性嵌段共聚物刷(聚降冰片烯- g-聚苯乙烯)- b-(聚降冰片烯- g-聚环氧乙烷)(PS- b-PEO)诱导的“有序自发乳化机制”，简便地制备了多孔结构色微球. 在此基础上，本工作中设计合成了含聚丙烯酸叔丁酯(PtBA)中间嵌段的三嵌段共聚物刷，探究其对界面自组装行为的影响规律. 实验结果表明，PtBA嵌段会使水-油界面过渡层厚度增加，而显著影响聚合物刷在W/O界面上的排列方式. 此外，PtBA可在酸性条件下水解生成聚丙烯酸(PAA)，与有机碱作用后成盐，使孔内壁亲水性增加、微球体积膨胀、结构色红移，从而制备出刺激响应性结构色微球.

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三嵌段共聚物刷诱导乳液自组装制备响应性多孔结构色微球。 Preparation of Stimuli-responsive Structural Colored Porous Microspheres via Emulsion Self-assembly Induced by Bottlebrush Triblock Copolymers

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高分子学报

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