Generally, conventional free-radical polymerization of an allyl monomer affords low-molecular-weight oligomers. However, since the allyl monomer can form a charge transfer complex with maleic anhydride (MA), in which the former acts as an electron donor and the latter acts as an acceptor, relatively high-molecular-weight alternating copolymers can be obtained via copolymerization of an allyl monomer and MA. In this study, hydrophilic alternating copolymers (P(11EO/MA)m) of methoxy poly(ethylene glycol) allyl ether (11EO) and MA were prepared via reversible addition–fragmentation chain transfer (RAFT)-controlled radical polymerization. The alternating nature of the polymers was confirmed by the consumption of both monomers during polymerization. The MA units in P(11EO/MA)m were hydrolyzed to prepare pendant carboxylic acid group-containing polymers (P(11EO/MH)m). Furthermore, an amphiphilic diblock copolymer (P(11EO/MH)m-PSn) was prepared via RAFT copolymerization of styrene monomer using P(11EO/MH)m as a macro-chain transfer agent. The association behavior of P(11EO/MH)m-PSn in water was also investigated. Hydrophilic alternating copolymers (P(11EO/MA)m) of methoxy poly(ethylene glycol) allyl ether (11EO) and maleic anhydride (MA) were prepared via controlled radical polymerization. The MA units in P(11EO/MA)m were hydrolyzed to prepare pendant carboxylic acid group-containing polymers (P(11EO/MH)m). Furthermore, an amphiphilic diblock copolymer (P(11EO/MH)m-PSn) was prepared via block copolymerization of styrene using P(11EO/MH)m as a macro-chain transfer agent. The association behavior of P(11EO/MH)m-PSn in water was also investigated.

中文翻译：

---

由聚苯乙烯和亲水交替共聚物嵌段组成的两亲双嵌段共聚物的制备

通常，烯丙基单体的常规自由基聚合提供低分子量低聚物。然而，由于烯丙基单体可以与马来酸酐（MA）形成电荷转移络合物，其中前者作为电子供体，后者作为受体，通过共聚可以得到较高分子量的交替共聚物。烯丙基单体和MA。在这项研究中，通过可逆加成-断裂链转移 (RAFT) 控制的自由基聚合制备了甲氧基聚（乙二醇）烯丙基醚（11EO）和 MA 的亲水交替共聚物（P（11EO/MA）m）。聚合物的交替性质通过聚合过程中两种单体的消耗得到证实。将 P(11EO/MA)m 中的 MA 单元水解以制备含羧酸侧基的聚合物 (P(11EO/MH)m)。此外，使用 P(11EO/MH)m 作为大链转移剂，通过苯乙烯单体的 RAFT 共聚制备了两亲二嵌段共聚物 (P(11EO/MH)m-PSn)。还研究了 P(11EO/MH)m-PSn 在水中的缔合行为。通过受控自由基聚合制备甲氧基聚（乙二醇）烯丙基醚（11EO）和马来酸酐（MA）的亲水交替共聚物（P（11EO/MA）m）。将 P(11EO/MA)m 中的 MA 单元水解以制备含羧酸侧基的聚合物 (P(11EO/MH)m)。此外，使用 P(11EO/MH)m 作为大链转移剂，通过苯乙烯的嵌段共聚制备了两亲二嵌段共聚物 (P(11EO/MH)m-PSn)。