L-色氨酸分子印迹壳聚糖膜的制备及透过选择性

Preparation and Selective Permeation Characterization of L-Tryptophane Molecular Imprinting Chitosan Film

以L-色氨酸为印迹分子,选取富含羟基和氨基的多功能团聚合物壳聚糖(CS)为基本成膜材料,通过相转化法结合碱液处理与硫酸交联两种后处理方式制备了L-色氨酸分子印迹CS膜(MIM),采用红外光谱(FT-IR)对膜的组成和结构进行表征,通过渗透实验考察了分子印迹壳聚糖膜对L-色氨酸的分子识别性能,考察了碱液处理与硫酸交联两种后处理方式对膜的溶胀性以及MIM内物质传递的影响.

Selecting L-tryptophane as molecular imprinting plymers, and chitosan which contains ammonia groups and hydroxyl groups as film material, L-tryptophane molecular imprinting CS film（MIM） was synthesized by alkali liquor-treatement with phase inversion and vitriol cross linkage aftertreatement. The composition and structure of MIM were characterized by FT-IR. Molecular identifying ability was researched by infiltration experiment of MIM. The swelling capacity and the effecting of inner mass transfer of MIM were also researched by alkali liquor-treatement with phase inversion and vitriol cross linkage aftertreatement.