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Seed‐Surface Grafting Precipitation Polymerization for Preparing Microsized Optically Active Helical Polymer Core/Shell Particles and Their Application in Enantioselective Crystallization
Author(s) -
Zhao Biao,
Lin Jiangfeng,
Deng Jianping,
Liu Dong
Publication year - 2018
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201800072
Subject(s) - materials science , crystallization , polymer , polymerization , chemical engineering , core (optical fiber) , enantioselective synthesis , precipitation polymerization , grafting , precipitation , shell (structure) , nanotechnology , polymer chemistry , composite material , radical polymerization , organic chemistry , chemistry , catalysis , physics , meteorology , engineering
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 SiO 2 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.