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Polymerization-Induced Self-Assembly for the Synthesis of Poly(N,N-dimethylacrylamide)-b-Poly(4-tert-butoxystyrene) Particles with Inverse Bicontinuous Phases.

Authors
  • Luo, Xin1
  • An, Zesheng2, 3
  • 1 Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China. , (China)
  • 2 State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin, 130012, China. , (China)
  • 3 Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China. , (China)
Type
Published Article
Journal
Macromolecular rapid communications
Publication Date
Dec 01, 2020
Volume
41
Issue
24
Identifiers
DOI: 10.1002/marc.202000209
PMID: 32557870
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Polymerization-induced self-assembly (PISA) has been routinely used to produce block copolymer (BCP) particles with various morphologies, but inverse bicontinuous phases have remained scarce. Herein, PISA preparation of poly(N,N-dimethylacrylamide-b-poly(4-tert-butoxystyrene) (PDMA-b-PtBOS) BCP particles with inverse bicontinuous phases in ethanol/water at 30% w/v solid content is reported. The effect of solvent composition and degree of polymerization of the core-forming PtBOS block is investigated. tBOS monomer conversion is enhanced on increasing water content, and inverse bicontinuous phases are effectively produced using a short PDMA stabilizer block. Morphology studies by both transmission and scanning electron microscopies reveal that transitions from vesicles to compound vesicles to inverse bicontinuous phases are the key mechanistic steps toward the formation of (partially) ordered mesophases. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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