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Macromol Rapid Commun. 2018 Oct;39(20):e1800072. doi: 10.1002/marc.201800072. Epub 2018 May 14.

Seed-Surface Grafting Precipitation Polymerization for Preparing Microsized Optically Active Helical Polymer Core/Shell Particles and Their Application in Enantioselective Crystallization.

Zhao B1,2, Lin J1,2, Deng J1,2, Liu D3.

Author information

1
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
2
College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
3
BUCT-CWRU International Joint Laboratory and College of Energy, Beijing University of Chemical Technology, Beijing, 100029, China.

Abstract

Core/shell particles constructed by polymer shell and silica core have constituted a significant category of advanced functional materials. However, constructing microsized optically active helical polymer core/shell particles still remains as a big academic challenge due to the lack of effective and universal preparation methods. In this study, a seed-surface grafting precipitation polymerization (SSGPP) strategy is developed for preparing microsized core/shell particles with SiO2 as core on which helically substituted polyacetylene is covalently bonded as shell. The resulting core/shell particles exhibit fascinating optical activity and efficiently induce enantioselective crystallization of racemic threonine. Taking advantage of the preparation strategy, novel achiral polymeric and hybrid core/shell particles are also expected.

KEYWORDS:

chiral; core-shell particles; enantioselective crystallization; helical polymer

PMID:
29756311
DOI:
10.1002/marc.201800072
[Indexed for MEDLINE]

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