学术论文

      MESO-STRUCTURED POLYMERIC HYDROGELS

      Abstract:
      Meso-structured (opal and inverse opal) polymeric hydrogels of varied morphology and composition were prepared by using two methods: post-modification of the template-synthesized structured polymers and templatepolymerization of functional monomers. A polyacrylic acid based inverse opal hydrogel was chosen to demonstrate its fast pH response by changing color, which is important in designing tunable photonic crystals. Template effects of the hydrogels on controlling structure of the template-synthesized inorganic materials were discussed. The catalytic effect of acid groups inthe templates was emphasized for a preferential formation of TiO2 in the region containing acid groups, which allowed duplicating inorganic colloidal crystals from colloidal crystal hydrogels (or macroporous products from macroporous hydrogels) via one step duplication.
      Author: Zhen-zhong Yang Jian-hua Rong Dan Li
      作者单位: State Key Laboratory of Polymer Physics & Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
      刊 名: 高分子科学(英文版) ISTICSCI
      年,卷(期): 2003, 21(2)
      机标分类号: O6 O43
      在线出版日期: 2008年1月7日
      基金项目: 国家自然科学基金,Creative Funding sponsored by Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences