Abstract
An intrinsic dilemma exists for block copolymer vesicles—improving the colloidal stability of vesicles using long/charged stabilizing blocks lowers the propensity of morphological transition to vesicles. Moreover, maintaining the vesicular morphology requires effective structure stabilization via cross-linking. We report a strategy to circumvent this problem and simultaneously improve the colloidal and structural stability of vesicles synthesized via polymerization-induced self-assembly (PISA) using dispersion polymerization. More specifically, in situ cross-linked poly(N,N-dimethylacrylamide)-b-poly(diacetone acrylamide-co-allylacrylamide) diblock copolymer vesicles are first synthesized via aqueous dispersion polymerization, which then serve as a robust platform to initiate the growth of a third hydrophilic block of either neutral poly(N,N-dimethylacrylamide), anionic poly(2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt), or cationic poly(3-acrylamidopropyl trimethylammonium chloride) with reta...
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