摘要
以聚砜(PSF)中空纤维超滤膜为基膜,采用表面紫外光聚合方法制备了D-色氨酸印迹中空纤维复合膜(CMIHFCM)。由SEM分析表明经过表面聚合后的D-色氨酸印迹中空纤维复合膜表面具有层叠交联状复合层,其厚度约3μm。实验结果表明D-色氨酸印迹中空纤维复合膜对模板分子D-色氨酸具有很好的识别作用,D,L-色氨酸的分离因子(α)最高可以达到5.0,大于非分子印迹复合膜的识别选择性。此外,引发剂的用量对D-色氨酸印迹中空纤维复合膜的识别性能有较大影响;当引发剂的浓度为1.0%,制得的D-色氨酸印迹中空纤维复合膜对D-色氨酸具有较好的识别性能,具有良好的应用前景。
Using polysulfone （PSF） hollow fiber membrane as the supporting membrane, chiral （D- tryptophane） molecular imprinted hollow fiber composite membrane （CMIHFCM） was fabricated by the surface photo-polymerization method and the recognition ability of CMIHFCM for D, L-tryptophane was studied. After surface polymerization, the external surface of CMIHFCM had a complex network layer with a thickness of 3 μm on the supporting membrane. The experimental results showed that CMIHFCM had the recognition ability for the template D-tryptophane. The D- tryptophane solution could be condensed more significantly by the molecular imprinted membrane than L-tryptophane, and the separation factor （α） of D-tryptophane （D-Trp） and L-tryptophane （L-Trp） could be 5.0. However, the recognition for D- tryptophane by the non-molecular imprinted membrane was weaker. When the concentration of initiator was 1.0%, CMIHFCM with good recognition abilitv for D-Trn was obtained.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2007年第1期125-129,共5页
CIESC Journal
基金
国家重点基础研究发展计划项目(2003CB615705)
校基金项目
上海华谊(集团)公司-华东理工大学先进化学与化工技术研究中心基金项目~~
关键词
手性分子印迹
复合膜
手性识别
D-色氨酸
chiral molecular imprinting
composite membrane
chiral recognition
D-tryptophane
