An esterolytic imprinted polymer prepared via a silica-supported transition state analogue
(2004) In Chemistry of Materials 16(14). p.2745-2749- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/141004
- author
- Lettau, K ; Warsinke, A ; Laschewsky, A ; Mosbach, Klaus LU ; Yilmaz, Ecevit LU and Scheller, F W
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Chemistry of Materials
- volume
- 16
- issue
- 14
- pages
- 2745 - 2749
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000222550600011
- scopus:3142752837
- ISSN
- 0897-4756
- DOI
- 10.1021/cm0352394
- language
- English
- LU publication?
- yes
- id
- 8418496e-11ee-4db6-8828-64c857b0bb85 (old id 141004)
- date added to LUP
- 2016-04-01 12:10:10
- date last changed
- 2025-04-04 14:24:21
@article{8418496e-11ee-4db6-8828-64c857b0bb85,
abstract = {{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.}},
author = {{Lettau, K and Warsinke, A and Laschewsky, A and Mosbach, Klaus and Yilmaz, Ecevit and Scheller, F W}},
issn = {{0897-4756}},
language = {{eng}},
number = {{14}},
pages = {{2745--2749}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Chemistry of Materials}},
title = {{An esterolytic imprinted polymer prepared via a silica-supported transition state analogue}},
url = {{http://dx.doi.org/10.1021/cm0352394}},
doi = {{10.1021/cm0352394}},
volume = {{16}},
year = {{2004}},
}