TY  - JOUR
A1  - Lettau, Kristian
A1  - Warsinke, Axel
A1  - Laschewsky, André
A1  - Mosbach, K.
A1  - Yilmaz, E.
A1  - Scheller, Frieder W.
T1  - An esterolytic imprinted polymer prepared via a silica-supported transition state analogue
N2  - In this work we describe a new preparation method for an esterolytic imprinted polymer with catalytic sites on the surface. A template was prepared by immobilizing a transition state analogue (phosphoramidic acid derivative) of an esterolytic reaction within porous silica particles. Polymerization within the pores was carried out using 4- vinylimidazole as a functional monomer and divinylbenzene as a cross-linker. The polymer was released by dissolution of the silica support with hydrofluoric acid and catalytic properties were studied by incubation with three different 4- nitrophenylesters and spectrophotometric determination of the released 4-nitrophenol. For 4-nitrophenyl acetate an activity of 211 nmol min(-1) mg(-1) and a K-m value of 2.2 mmol L-1 was obtained
Y1  - 2004
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/15241
ER  -