The Experts below are selected from a list of 6 Experts worldwide ranked by ideXlab platform

Frieder W. Scheller - One of the best experts on this subject based on the ideXlab platform.

  • An Esterolytic Imprinted Polymer Prepared via a Silica-Supported Transition State Analogue
    Chemistry of Materials, 2004
    Co-Authors: Kristian Lettau, Axel Warsinke, André Laschewsky, Klaus Mosbach, Ecevit Yilmaz, Frieder W. Scheller
    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.

Kristian Lettau - One of the best experts on this subject based on the ideXlab platform.

  • An Esterolytic Imprinted Polymer Prepared via a Silica-Supported Transition State Analogue
    Chemistry of Materials, 2004
    Co-Authors: Kristian Lettau, Axel Warsinke, André Laschewsky, Klaus Mosbach, Ecevit Yilmaz, Frieder W. Scheller
    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.

Axel Warsinke - One of the best experts on this subject based on the ideXlab platform.

  • An Esterolytic Imprinted Polymer Prepared via a Silica-Supported Transition State Analogue
    Chemistry of Materials, 2004
    Co-Authors: Kristian Lettau, Axel Warsinke, André Laschewsky, Klaus Mosbach, Ecevit Yilmaz, Frieder W. Scheller
    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.

André Laschewsky - One of the best experts on this subject based on the ideXlab platform.

  • An Esterolytic Imprinted Polymer Prepared via a Silica-Supported Transition State Analogue
    Chemistry of Materials, 2004
    Co-Authors: Kristian Lettau, Axel Warsinke, André Laschewsky, Klaus Mosbach, Ecevit Yilmaz, Frieder W. Scheller
    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.

Klaus Mosbach - One of the best experts on this subject based on the ideXlab platform.

  • An Esterolytic Imprinted Polymer Prepared via a Silica-Supported Transition State Analogue
    Chemistry of Materials, 2004
    Co-Authors: Kristian Lettau, Axel Warsinke, André Laschewsky, Klaus Mosbach, Ecevit Yilmaz, Frieder W. Scheller
    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.