期刊
JOURNAL OF POLYMER SCIENCE
卷 58, 期 1, 页码 77-83出版社
WILEY
DOI: 10.1002/pola.29439
关键词
block copolymer; metallopolymer; polyelectrolyte; self-assembly
资金
- National Science Foundation EPSCoR Program under NSF Award [OIA-1655740]
- National Institutes of Health [R01AI120987]
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 coreforming PHPMA had a strong influence on the size of nanoparticles. (C) 2019 Wiley Periodicals, Inc.
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