β-环糊精功能化纤维素的合成与表征  

Synthesis and Characterization of Microcrystalline Cellulose Functionalized with β-Cyclodextrin

作　　者：张利[1] 李响[1] 何颖[1] 王会玲[1] 王恩举[1] 

机构地区：[1]海南师范大学化学与化工学院,海南海口571158

出　　处：《海南师范大学学报（自然科学版）》2012年第3期292-294,303,共4页Journal of Hainan Normal University（Natural Science）

基　　金：国家大学生创新性实验计划(201030);海南省教育厅高等学校科学研究项目(Hjkj2011-25)

摘　　要：在碱性条件性下,以环氧氯丙烷为联接剂将β-环糊精接枝到微晶纤维素表面.通过紫外分光光度法研究了该功能化纤维素对肉桂酸的包合吸附能力,每克纤维素可吸附18.375mg肉桂酸,产品中β-环糊精的质量分数高达14%.纤维素表面的β-环糊精保留了天然环糊精的包合特性,是一种优良的固相萃取剂.Under alkaline condition,β-cyclodextrin （β-CD） was grafted onto microcrystalline cellulose powder by us- ing epiehlorohydrin as a chemical linking agent to afford a type of functionalized cellulose. The adsorption behavior of cinnamic acid on the funetionalized cellulose was determined by UV spectrophotometry, and the adsorption capability was 18.375mg-g-1. The mass fraction of β-CD in the product reached up to 14 percent. The β-CD supported on cellulose preserved the inclusion ability as natural β-CD.

关 键 词：微晶纤维素 Β-环糊精 接枝率 

分 类 号：O629[理学—有机化学]