Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

header
Reach Us reach to JOCPR whatsapp-JOCPR +44 1625708989
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Original Articles: 2015 Vol: 7 Issue: 6

Amidolysis of phenylalanine-p-nitroanilide using TSA imprinted macromatric polymer catalysts: Effect of porogen on catalytic efficiency

Abstract

Chymotrypsin mimics were synthesized by molecular imprinting technique using the transition state analogue phenyl-1-benzyloxycarbonylaminobenzyl phosphonate as the template, methacryloyl-L-histidine, and methacrylic acid as the functional monomers and EGDMA as the crosslinking agent. The TSA imprinted polymers were prepared in different porogens. Amidolysis of phenylalanine-p-nitroanilide was carried out using these TSA imprinted macromatric polymer catalysts. The investigations revealed that the porogen used in the polymerization reaction has a significant influence on the catalytic activity of the enzyme mimics in the amidolytic reactions. Morphological features of the polymer catalysts synthesized using DMSO and chloroform as the medium of polymerization were different. The macroporous polymer prepared in DMSO exhibited higher imprinting efficiency, enantioselectivity, and substrate shape specificity in amidolytic reactions compared to the less porous polymer catalyst prepared in chloroform. Pseudo first order kinetics was observed for the catalytic amidolysis.

http://sacs17.amberton.edu/

rtp slot demo