CAJ | 학술논문

报道了以4-氰基戊酸二硫代苯甲酸（CPADB）作为链转移剂，4,4'-偶氮双（4-氰基戊酸）(ACVA)作为引发剂，采用可逆加成裂解链转移法（RAFT）实现了2-丙烯酰胺-2-甲基丙磺酸（AMPS）、α-甲基丙烯酸（MMA）、N,N-二乙胺基甲基丙烯酸乙酯（DEAEMA）的可控自由基聚合。通过调节[单体]：[引发剂]：[链转移剂]的比例（50∶0.2∶1,100∶0.2∶1,500∶0.2∶1）合成了不同聚合度的均聚物。所得聚合物具有分子量可控，分子量分布窄（PDI=1.08-1.17）的特性，显示了可控聚合的特点。本文的结果对制备一系列结构、分子量可控的聚电解质（DPn=50~500, PDI=1.08~1.17）有指导意义。
보도료이4-청기무산이류대분갑산（CPADB）작위련전이제，4,4'-우담쌍（4-청기무산）(ACVA)작위인발제，채용가역가성렬해련전이법（RAFT）실현료2-병희선알-2-갑기병광산（AMPS）、α-갑기병희산（MMA）、N,N-이을알기갑기병희산을지（DEAEMA）적가공자유기취합。통과조절[단체]：[인발제]：[련전이제]적비례（50∶0.2∶1,100∶0.2∶1,500∶0.2∶1）합성료불동취합도적균취물。소득취합물구유분자량가공，분자량분포착（PDI=1.08-1.17）적특성，현시료가공취합적특점。본문적결과대제비일계렬결구、분자량가공적취전해질（DPn=50~500, PDI=1.08~1.17）유지도의의。
We reported controlled synthesis of methacrylic acid, 2-(diethylamino) ethyl methacrylate and 2-acrylamido-2-methyl-1-propanesulfonic acid (three electrolyte-type monomers) via reversible addition-fragmentation chain transfer (RAFT) polymerization with the chain transfer agent (CTA) (4-cyanopentanoic acid)- 4- dithiobenzoate and initiator (I) 4,4’- azobis(4- cyanovaleric acid) in homogeneous aqueous media. Three distinct [monomer]0:[I]0:[CTA]0 ratios (50:0.2:1, 100:0.2:1, 500:0.2:1) were conducted. The polymerizations exhibited the characteristics of a controlled/“living”polymerization which demonstrated well controlled molecular weight and low molecular weight distribution. Finally, the results of this investigation were used as a guide for the preparation of a series of well-defined polyelectrolytes (DPn=50-500, PDI=1.08-1.17) in high yield.