Journal
SEPARATION SCIENCE AND TECHNOLOGY
Volume 48, Issue 12, Pages 1777-1785Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2013.770764
Keywords
4-diaminocyclohexane; enantioselective membrane; enantioselectivity; optical resolution; Trans-1; trimesoyl chloride
Funding
- Department of Science and Technology (DST), New Delhi-India [GAP-1025]
- CSIR, New Delhi
Ask authors/readers for more resources
Thin film polymer composite membranes capable of resolving racemate of -amino acids were prepared by coating a chiral selective layer on micro-porous polysulfone membrane in situ through interfacial polymerization of trans-1, 4-diaminocyclohexane (T-1, 4-DCH) with trimesoyl chloride (TMC). The chiral selective layer of membranes was extensively characterized by FTIR spectroscopy (ATR), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and Transmission Electron Microscopy (TEM). The membranes prepared from monomer solutions of low concentrations (T-1, 4-DCH, 2%, and TMC, 1%) rejected more solute with low enantioselectivity whereas the membranes prepared from monomer solutions of high concentrations (T-1, 4-DCH, 4% and 6% and TMC, 2%) rejected less solute with high enantioselectivity. The membrane prepared from 6% T-1, 4-DCH, and 1% TMC solutions exhibited maximum enantioselectivity (>92% ee). The membranes prepared from monomer solutions of low concentrations had very thin coating layer (<0.5 mu m) whereas membranes prepared from concentrated monomer solutions had comparatively thick coating layer (>0.5 mu m). The rejection of arginine increased marginally with permeation time but the enantioselectivity remained constant.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available