Synthesis, characterization of POSS based Amphiphilic Block Copolymers and their controllable self-assembly behavior in solutions

Abstract

有机/无机材料是近年来逐渐备受关注的新型杂化复合材料。其中,具有有机/无机内杂化性质的多面体齐聚倍半硅氧烷POSS凭借单体结构的多样化及纳米级尺寸被寄希望于构筑新型纳米复合材料,有效提高复合材料的热性能、机械性能、抗氧化性能甚至光学性能等,这已是当今复合材料领域的研究热点。本工作的研究目的在于结合活性自由基聚合和选择性酸解等方法制备结构可控性强的POSS基双亲嵌段共聚物,并采用溶液自组装技术构筑具有新颖拓扑结构的纳米杂化材料,进一步通过调节嵌段长度、前段成分、选择性溶剂和温度等影响因素使其实现可控。本论文的主要研究工作具体如下: 本文采用可逆断裂-加成链转移聚合方法(RAFT)制备POSS基...Recently, organic/inorganic material serves as novel hybrid composites. Especially, polyhedral oligomeric silsesquioxane (POSS) with organic/inorganic hybrid characteristic, diversification of molecule and nano-level size is expected to construct novel nanocomposites and improve their thermal stability, mechanical strength, oxidation resistance and even optical properties effectively, which has be...学位:理学硕士院系专业:材料学院材料科学与工程系_高分子化学与物理学号:2072009115007

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