✦ LIBER ✦

The molecular reaction vessels for a transesterification process created by molecular imprinting technique

✍ Scribed by Zihui Meng; Koji Sode

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 154 KB
Volume: 18
Category: Article
ISSN: 0952-3499
DOI: 10.1002/jmr.732

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✦ Synopsis

A polymeric catalyst was synthesized by co-polymerizing 4(5)-vinylimidazole and itaconic acid with trimethylpropanol trimethacrylate micro spheres. The catalyst obtained catalysed the transesterification process between p-nitrophenyl acetate and hexanol with maximal initial velocity(nu(max)) of 4.73 +/- 0.47 microM min(-1) mg(-1), and turnover rate (k(cat)) of 8.67 min(-1). Using p-nitrophenyl acetate as template, molecular imprinting process enhanced the nu(max) of the polymeric catalyst 3-fold. Each imprinted site can be considered as a single molecular reaction vessel, and achieved a k(cat) of 169 min(-1) towards the conversion of p-nitrophenyl acetate in hexanol.

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