A POLYVINYL ALCOHOL POROUS SUPPORT AND METHOD

A POLYVINYL ALCOHOL POROUS SUPPORT AND METHOD

Disclosed here are semi-permeable cross-linked polyvinyl alcohol (PVA) based membranes that can be used as supports for water purification membranes, and methods for their production. The cross-linked PVA-based membranes are cross-linked with the reaction product of poly-epoxides and -OH groups from...

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Hauptverfasser: Li May Goh, Kai Zhang, Kin Ho Wee, Ranting Wu, Lawrence C. Costa, Dezhong Xiao, Kia Kian Kee
Format: Patent
Sprache:eng
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PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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creator Li May Goh
Kai Zhang
Kin Ho Wee
Ranting Wu
Lawrence C. Costa
Dezhong Xiao
Kia Kian Kee
description Disclosed here are semi-permeable cross-linked polyvinyl alcohol (PVA) based membranes that can be used as supports for water purification membranes, and methods for their production. The cross-linked PVA-based membranes are cross-linked with the reaction product of poly-epoxides and -OH groups from the PVA polymers. Methods according to the present disclosure include crosslinking dissolved PVA and dissolved poly-epoxides, casting the cross-linked PVA, and coagulating the cast polymer in a phase immersion precipitation process.
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subjects PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
title A POLYVINYL ALCOHOL POROUS SUPPORT AND METHOD
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