We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Seed‐Surface Grafting Precipitation Polymerization for Preparing Microsized Optically Active Helical Polymer Core/Shell Particles and Their Application in Enantioselective Crystallization.
- Authors
Zhao, Biao; Lin, Jiangfeng; Deng, Jianping; Liu, Dong
- 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. Seed‐surface grafting precipitation polymerization strategy is developed to prepare optically active helical polymer core/shell particles consisting of helical polyacetylene shell covalently bonded on microsized SiO2 core. The core/shell particles show intriguing optical activity and are further used as specific chiral additive to successfully induce enantioselective crystallization of racemic threonine solution.
- Subjects
SURFACE grafting (Polymer chemistry); PRECIPITATION (Chemistry); POLYMERIZATION; ENANTIOSELECTIVE catalysis; CRYSTALLIZATION
- Publication
Macromolecular Rapid Communications, 2018, Vol 39, Issue 20, pN.PAG
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.201800072