Synthesis of Cross‐Linked Block Copolymer Nanoassemblies and their Coating Application

作者：Guangran Shao, Yuewen Yu, Wangqing Zhang · 发表于：Macromolecular Rapid Communications · 年份：2022 · DOI：10.1002/marc.202100909 · 被引用次数：3 · 研究领域：Advanced Polymer Synthesis and Characterization、Block Copolymer Self-Assembly、Polymer Surface Interaction Studies

Since the discovery of polymerization-induced self-assembly (PISA), convenient synthesis of concentrated block copolymer nanoassemblies dispersed in solvent has been achieved. Now, application of block copolymer nanoassemblies should be paid more attention. In this study, corona-cross-linked block copolymer nanoparticles of poly[dimethylacrylamide-co-(diacetone acrylamide)]-b-polystyrene [P(DMA-co-DAAM)-b-PS] containing the poly(DAAM) segment in the hydrophilic P(DMA-co-DAAM) block are synthesized initially by PISA following dispersion reversible addition-fragmentation chain transfer polymerization and then by covalent intraparticle cross-linking through the poly(DAAM) segment and adipic acid dihydrazide. Coating application of the corona-cross-linked block copolymer nanoassemblies is tried, and much higher water resistance of the corona-cross-linked block copolymer nanoassemblies than that of the linear block copolymer nanoassemblies is demonstrated.