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以苄醇(BzOH)与氢化钾(KH)反应形成的氧阴离子作为引发剂,依次引发甲基丙烯酸-2-(N,N-二甲氨基)乙酯(DMAEMA,简称DMA)、甲基丙烯酸-2-(N,N-二乙氨基)乙酯(DEAEMA,简称DEA)和甲基丙烯酸-(2,2,3,3,4,4,5,5-八氟)戊酯(OFPMA)进行氧阴离子聚合,获得含氟三嵌段共聚物PDMA-b-PDEA-b-POFPMA和PDEA-b-PDMA-b-POFPMA.共聚物的化学结构可以通过不同单体的加料顺序和各种单体的投料量加以控制.通过1HNMR,19FNMR和GPC测试,研究聚合物的结构、分子量及分子量分布.利用表面张力、荧光探针法、Zeta电位和透射电镜等测试方法,研究共聚物在不同pH值的水溶液中的聚集行为。
Using oxyanions formed by the reaction of benzyl alcohol (BzOH) and potassium hydride (KH) as initiators, 2- (N, N-dimethylamino) ethyl methacrylate (DMAEMA, DMA for short), methacrylic acid (DEAEMA, DEA for short) and (2,2,3,3,4,4,5,5-octafluoro) pentylmethacrylate (OFPMA) for 2- (N, N-diethylamino) The fluorinated triblock copolymers PDMA-b-PDEA-b-POFPMA and PDEA-b-PDMA-b-POFPMA were obtained by the polymerization of oxyanions.The chemical structure of the copolymers can be obtained by the sequential addition of different monomers The structure, molecular weight and molecular weight distribution of the polymers were investigated by 1HNMR, 19F NMR and GPC.The surface tension, fluorescence probe method, Zeta potential and transmission electron microscopy were used to investigate the effect of copolymer on the structure, Aggregation behavior in value aqueous solution.