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有机/无机杂化材料由于其特性长期以来一直是人们研究的热点。阳离子聚(N-异丙基丙烯酰胺)接枝共聚物(PDMA+-PNIPAm)的浓溶液具有温度响应性的可逆凝胶-溶液相转变。研究发现,人造粘土Laponite分散在接枝共聚物水溶液中,两组分间自组装生成微米级的片状结构胶。偏光显微镜观察到Laponite粘土粒子在片状结构中取向排列,形成薄片的经络。微米级片状结构胶在水中均匀分散,自然晾干的过程中片状结构胶之间再次交联,形成不可再分散的杂化水凝胶。水凝胶具有良好的吸水性,吸水后的水凝胶具有灵敏的温度刺激性收缩或舒张。
Organic / inorganic hybrid materials have long been the focus of research because of their properties. The concentrated solution of cationic poly (N-isopropylacrylamide) graft copolymer (PDMA + -PNIPAm) has a temperature-responsive, reversible gel-solution phase transition. The study found that the artificial clay Laponite dispersed in the graft copolymer aqueous solution, self-assembly between the two components to generate micron-scale sheet-like structural adhesive. Polarizing microscope observed Laponite clay particles in the sheet structure orientation, the formation of the meridian of the sheet. Micro-scale sheet-like structural adhesive evenly dispersed in water, the natural drying of the sheet-like structural adhesive between the cross-linked again to form a non-redispersible hybrid hydrogel. Hydrogel has a good water absorption, water-absorbing hydrogel has a sensitive temperature stimulating contraction or relaxation.