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Thermo-Responsive Brush Copolymers with Structure-Tunable LCST and Surface Property  
Thermo-Responsive Brush Copolymers with Structure-Tunable LCST and Surface Property
资料类型: PDF文件
关键词: Thermo-responsive  brush  copolymers  Structure-tunable  LCST  Thermo-responsive  wettability  
资料大小: 398KB
所属学科: 功能高分子
来源: 来源网络
简介:
Thermo -responsive brush copolymers poly(methyl methacrylate(MMA)-co-2-(2-bromoisobutyryloxy)ethyl methacrylate (BIEM)-graft-(N-isopropyl- acrylamide)(NIPAAm) were synthesized using Cu-mediated "Iiving" radical polymerization (LRP) approach.The effect of grafting densities on their thermo-responsive phase transition behaviors in aqueous solution was investigated in detail. The lower critical solution temperature (LCST) of the brush copolymers can be adjusted as 35, 37 and 380C through the random, gradient and block backbone structure respectively. Their structure tunable thermo-responsive phase transition behaviors were further confirmed by transmission electron microscopy (TEM) and dynamic light scattering (DLS). Furthermore, the temperature-responsive wettability of surfaces modified by the resulting brush copolymers made a contribution to the preparation of smart surface.
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上传时间: 2014-10-22 15:09:51
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