Cobaltocenium‐containing polyelectrolyte block copolymer nanoparticles were prepared via polymerization‐induced self‐assembly (PISA) using aqueous dispersion RAFT polymerization. The cationic steric stabilizer was a macromolecular chain‐transfer agent (macro‐CTA) based on poly(2‐cobaltocenium amidoethyl methacrylate chloride) (PCoAEMACl), and the core‐forming block was poly(2‐hydroxypropyl methacrylate) (PHPMA). Stable cationic spherical nanoparticles were formed in aqueous solution with low dispersity without adding any salts. The chain extension of macro‐CTA with HPMA was efficient and fast. The effects of block copolymer compositions, solid content, charge density, and addition of salts were studied. It was found that the degree of polymerization of both the stabilizer PCoAEMACl and the core‐forming PHPMA had a strong influence on the size of nanoparticles. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019

中文翻译：

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聚合诱导的金属聚电解质嵌段共聚物的自组装

使用水分散体 RAFT 聚合通过聚合诱导自组装（PISA）制备含钴茂聚电解质嵌段共聚物纳米颗粒。阳离子空间稳定剂是基于聚（2-钴酰氨基乙基甲基丙烯酸氯化物）（PCoAEMACl）的大分子链转移剂（macro-CTA），成核嵌段是聚（2-羟丙基甲基丙烯酸酯）（PHPMA）。在不添加任何盐的情况下，在低分散度的水溶液中形成稳定的阳离子球形纳米粒子。使用 HPMA 的宏观 CTA 扩链高效且快速。研究了嵌段共聚物组成、固体含量、电荷密度和盐添加的影响。研究发现，稳定剂 PCoAEMACl 和成核 PHPMA 的聚合度对纳米颗粒的尺寸有很大影响。© 2019 Wiley periodicals, Inc. J. Polym。科学，A 部分：聚合物。化学。2019年