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Polymerization‐induced self‐assembly of metallo‐polyelectrolyte block copolymers
Author(s) -
Rahman Md Anisur,
Cha Yujin,
Yuan Liang,
Pageni Parasmani,
Zhu Tianyu,
Jui Moumita Sharmin,
Tang Chuanbing
Publication year - 2020
Publication title -
journal of polymer science
Language(s) - English
Resource type - Journals
eISSN - 2642-4169
pISSN - 2642-4150
DOI - 10.1002/pola.29439
Subject(s) - cationic polymerization , copolymer , chain transfer , polymer chemistry , polymerization , dispersion polymerization , dispersity , materials science , polyelectrolyte , degree of polymerization , reversible addition−fragmentation chain transfer polymerization , aqueous solution , chemical engineering , nanoparticle , chemistry , radical polymerization , polymer , organic chemistry , nanotechnology , engineering
ABSTRACT 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. 2020 , 58 , 77–83