SYNTHESIS AND AGGREGATION BEHAVIOR OF AN AMPHIPHILIC BLOCK COPOLYMER WITH STRONG PUSH-PULL AZO CHROMOPHORES ON SIDE CHAINS
含强推拉电子型偶氮苯的嵌段共聚物合成与自组装研究

An amphiphilic block copolymer functionalized with strong push-pull azobenzene moieties,PEG-b-P6CNAzo,was synthesized through a scheme that combined ATRP and post-polymerization azo-coupling reaction.First,the precursor diblock copolymer,PEG-b-P6MA,containing aniline groups was prepared by a PEGBr initiated ATRP of monomer 6-(N-methylanilino)hexyl methacrylate.Then PEG-b-P6CNAzo was obtained through azo-coupling reaction between PEG-b-P6MA and diazonium salt of 4-aminobenzonitrile.The azo block copolymer wa...