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2013•Huagong jinzhanRequires access

Progresses in the modification and application of poly(vinyl alcohol) membrane

Huanlin Chen

Open publisher page 3 citations

Abstract

It is necessary to modify polyvinyl alcohol(PVA) before using it as separation membrane because of its excessive swelling.In this paper,modification methods of PVA are reviewed,including crosslinking,grafting,blending,hybridization and substitution;their advantages and disadvantages are listed;and some comments are given for problems in modification methods.The application of modified PVA membrane is presented in detail.The development and application of PVA pervaporation membrane with excellent hydrophilicity and PVA membrane with high conductivity and low methanol permeability for fuel cell are prospected,respectively.

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What this paper is about

It is necessary to modify polyvinyl alcohol(PVA) before using it as separation membrane because of its excessive swelling.In this paper,modification methods of PVA are reviewed,including crosslinking,grafting,blending,hybridization and substitution;their advantages and disadvantages are listed;and some comments are given for problems in modification methods.The application of modified PVA membrane is presented in detail.The development and application of PVA pervaporation membrane with excellent hydrophilicity and PVA membrane with high conductivity and low methanol permeability for fuel cell are prospected,respectively.

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OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

It is necessary to modify polyvinyl alcohol(PVA) before using it as separation membrane because of its excessive swelling.In this paper,modification methods of PVA are reviewed,including crosslinking,grafting,blending,hybridization and substitution;their advantages and disadvantages are listed;and some comments are given for problems in modification methods.The application of modified PVA membrane is presented in detail.The development and application of PVA pervaporation membrane with excellent hydrophilicity and PVA membrane with high conductivity and low methanol permeability for fuel cell are prospected,respectively.

Key concepts: Vinyl alcohol, Pervaporation, Membrane, Polyvinyl alcohol, Chemical engineering, Materials science, Grafting, Methanol

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