文献类型：期刊文献

英文题名：Spherical particles of α-, β- and γ-cyclodextrin polymers and their capability for phenol removal

作者：Chen, Qingchuan[1];Zhang, Rui[1];Wang, Jie[1];Li, Li[1];Guo, Xuhong[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：79

起止页码：156

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20122315086437);WOS:【SCI-EXPANDED(收录号:WOS:000305767200047)】；

基金：We gratefully acknowledge the National Natural Science Foundation of China (No. 20774030 and 21004021), the Fundamental Research Funds for the Central Universities, the Key Basic Research Project of Shanghai Science and Technology Commission (10JC1403800), and the Scientific and Technological Project of Shanghai Science and Technology Commission (10111100103) for support of this work.

语种：英文

外文关键词：Cyclodextrin; Reverse suspension polymerization; Phenol; Host-guest interaction

摘要：Spherical particles of alpha-, beta- and gamma-cyclodextrin (CD) polymers were prepared by suspension polymerization in liquid paraffin using epichlorohydrin as crosslinker. The shape and size of the polymerized-CD particles were controlled by the amounts of water and crosslinker after accounting for the varied water-solubility of three CDs. Due to the selective inclusion associations between CDs and phenol, these CD polymer particles are ideal candidates for phenol removal. The adsorption amount of phenol by CD polymers was determined by the adsorption intensity at 269 nm in the UV spectrum. The phenol adsorption capacity of CD polymers was found to depend on host-guest interactions and the size of the inner cavity in each CD molecular structure. The beta-CD polymer particles showed the best result to adsorb phenol, tentatively attributed to the best size matching. (C) 2012 Elsevier B.V. All rights reserved.