A methodology combining living anionic polymerization with linking chemistry using 1 : 1 addition reaction has been developed for the syntheses of tetrablock quaterpolymers composed of A, B, C, and D blocks. With this methodology using the ω-chain-end-(α-phenylacrylate (PA))-functionalized D, α,ω-chain-end-(2-tetrahydropyranyl ether and PA)-functionalized D, and ω-chain-end-PA-functionalized AD as the building blocks, the following all structurally possible twelve tetrablock quaterpolymers were successfully synthesized: ABCD, ABDC, ACBD, ACDB, ADBC, ADCB, BACD, BADC, BCAD, BDAC, CABD, and CBAD. Polystyrene, poly(2-vinylpyridine), poly(tert-butyl methacrylate) (or poly(methyl methacrylate)), and poly(1,2-butylene oxide) prepared by living anionic polymerization were used as A, B, C, and D blocks, respectively. The polymers synthesized in this study are quite new tetrablock quaterpolymers and well-defined in structure.

中文翻译：

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通过一种方法结构上可能所有四嵌段四元的精确合成结合活性阴离子聚合，使用1连接化学：1加成反应†

已经开发了一种方法，将活性阴离子聚合与使用1：1加成反应的连接化学相结合，用于合成由A，B，C和D嵌段组成的四嵌段四元共聚物。使用这种方法，使用ω-链端-（α-苯基丙烯酸酯（PA））官能化的D，α，ω链端-（2-四氢吡喃基醚和PA）官能化的D和ω-链端-以PA功能化的AD为基础，成功合成了以下所有结构上可能的十二种四嵌段四元共聚物：ABCD，ABDC，ACBD，ACDB，ADBC，ADCB，BACD，BADC，BCAD，BDAC，CABD和CBAD。聚苯乙烯，聚（2-乙烯基吡啶），聚叔丁基通过活性阴离子聚合制备的甲基丙烯酸丁酯（或聚甲基丙烯酸甲酯）和聚1,2-环氧丁烷分别用作A，B，C和D嵌段。在这项研究中合成的聚合物是相当新的四嵌段四元共聚物，并且结构明确。