文献类型：专利

英文题名：Multi-responsiveness hyperbranched polymer used in field of intelligent material, optical information storage field, and biological drug field, comprises azobenzene group and amide group which are present in each branched arm of polymer

作者：LIN S;YAO Y;SUN L;GAO F

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN108102105-A

申请日：2017-11-15

公开日：2018-06-01

语种：英文

收录：DERWENT

摘要：NOVELTY - Multi-responsiveness hyperbranched polymer comprises azobenzene group and amide group which are present in each branched arm of polymer, where multi-responsiveness hyperbranched polymer is represented by compound (I). USE - Multi-responsiveness hyperbranched polymer used in field of intelligent material, optical information storage field, and biological drug field (claimed). ADVANTAGE - The multi-responsiveness hyperbranched polymer has novel structure, light, temperature and pH value of triple resonance, reasonable flow, simple to prepare and reaction is clear. DETAILED DESCRIPTION - The multi-responsiveness hyperbranched polymer is represented by compound of formula (I). m=represented by compound of formula (II). .. An INDEPENDENT CLAIM is included for a method for preparing multi-responsiveness hyperbranched polymer, which involves: (A) using Michael addition polymerization, preparing diene azobenzene and taking tetrahydrofuran as solvent; (B) adding azo-benzene and triethylamine under protection of nitrogen, mixing uniformly; (C) slowly injecting the acryloyl chloride under ice bath condition, and controlling temperature of system at 0-30 degrees C for 1-12 hours, and filtering to obtain upper layer solid; (D) water washing, centrifuging for 3 times, liquid nitrogen freezedrying, and vacuum drying to obtain yellow diene azobenzene powder; (E) preparing multiresponsiveness hyperbranched polymer by using dimethylformamide as solvent; and (F) reacting diene azobenzene powder with a polyamine monomer 1-(2-amino-ethyl) piperazine fully mixing and performing Michael addition reaction at 20-50 degrees C for 24-80 hours, performing acetone precipitate by centrifuging for 3 times, and vacuum drying to obtain yellow solid multiresponsiveness hyperbranched polymer.