摘要
高分子微凝胶是一类具有三维网络结构的分子内交联的高分子球形微粒,其物理、化学性质与其构象变化有着密切的关系,对于外界环境条件如温度、pH、离子强度、电场或磁场等的改变,微凝胶即表现出相应的体积相转变特性。近年来,基于高分子微凝胶对外界的刺激相应性与无机纳米粒子的特殊性能制备得到了各种有机-无机复合材料。本文根据微凝胶在无机微、纳米材料制备过程中所起的作用,将基于高分子微凝胶制备无机-有机复合微、纳米材料的方法分为原位合成法、物理诱捕法和聚合法,并分别从各类方法的特点和应用等方面进行详尽地分析和阐述。
Polymer microgels are a group of intramolecular crosslinked spherical polymer particles with 3D network structures. The physicochemical properties of polymer microgels are closely related to their conformation changing. Polymer microgels possess the stimuli-responsive in response to the external environmentally-induced changes nature which undergoes reversible volume phase transitions , such as temperature, pH, ionic strength, and electric or magnetic field etc. In recent years, various inorganic-organic composite materials have been prepared based on the stimuli-responsibilities of the microgels and the special properties of the inorganic nanoparticles. In this review, the synthesis of inorganic-organic composites can be divided into three approaches： in-situ synthesis, physical entrapment and polymerization, according to the functionalities that polymer microgels bear during the preparation of inorganic micro- or nano-materials. In addition, the characteristic and application of each synthesis technique are analyzed and discussed in detail.
出处
《高分子通报》
CAS
CSCD
北大核心
2009年第3期11-22,共12页
Polymer Bulletin
基金
国家自然科学基金(20373039)
教育部博士点基金(200407188001)
陕西省自然科学基金(2007E106)资助项目
关键词
高分子微凝胶
无机纳米粒子
原位合成法
物理诱捕法
聚合法
Key words ： Polymer microgels
Inorganic nano-particles
In-situ synthesis
Physical entrapment
Polymerization
