Volume 37, Issue 10 pp. 2921-2931

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Graft polymerization of polyvinylpyrrolidone onto silica

Mark Chaimberg,

Mark Chaimberg

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024

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Richard Parnas,

Richard Parnas

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024

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Yoram Cohen,

Corresponding Author

Yoram Cohen

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024===Search for more papers by this author

Mark Chaimberg,

Mark Chaimberg

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024

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Richard Parnas,

Richard Parnas

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024

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Yoram Cohen,

Corresponding Author

Yoram Cohen

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024

Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, California 90024===Search for more papers by this author

First published: 20 May 1989

https://doi.org/10.1002/app.1989.070371011

Citations: 51

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Abstract

A new technique is reported for the surface grafting of polyvinylpyrrolidone (PVP) to hydroxylated solid surfaces. Free radical graft polymerization of vinylpyrrolidone onto vinylsilane–modified impermeable silica particles was carried out in an aqueous slurry reactor. The graft yield and the monomer conversion were determined by thermogravimetric analysis and UV spectroscopy, respectively. The graft yield was shown to increase by increasing the initial monomer concentration. A comparison of the graft polymerization reaction with the adsorption of polyvinylpyrrolidone onto untreated, vinylsilane-modified, and PVP-grafted silica was performed.

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Volume37, Issue10

20 May 1989

Pages 2921-2931

Graft polymerization of polyvinylpyrrolidone onto silica

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Graft polymerization of polyvinylpyrrolidone onto silica

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