Reverse osmosis membranes prepared from potassium peroxydisulphate-modified poly(vinyl alcohol)

被引：18

作者：

Bezuidenhout, D ^{[1
]}

Hurndall, MJ ^{[1
]}

Sanderson, RD ^{[1
]}

van Reenen, AJ ^{[1
]}

机构：

[1] Univ Stellenbosch, Inst Polymer Sci, ZA-7602 Matieland, South Africa

来源：

DESALINATION | 1998年 / 116卷 / 01期

关键词：

poly(vinyl alcohol); reverse osmosis membranes; potassium peroxydisulphate; insolubilization;

D O I：

10.1016/S0011-9164(98)00055-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Poly(vinyl alcohol) (PVAL) was modified and insolubilized by reaction with potassium peroxydisulphate (K2S2O8) and used to make reverse osmosis (RO) membranes on tubular poly(arylether sulphone) (PES) ultrafiltration (UF) substrates. Prior to making the membranes, aqueous solutions of PVAL and K2S2O8 were aged. The effects of solution maturation times on the salt retentions and permeate fluxes of the resultant membranes were determined. Increased maturation times were found to lead to membranes with higher salt retentions. The K2S2O8-crosslinked PVAL membranes were also tested with an industrial effluent. Changes which took place in the maturing PVAL/K2S2O8 solutions were characterized by viscometry, UV spectroscopy, H-1- and C-13-NMR spectroscopy, and pH measurements. Only the most important results of these analyses are reported here.

引用

页码：35 / 43

页数：9

共 17 条

[1] BEZUIDENHOUT D, 1993, THESIS U STELLENBOSC
[2] CHARACTERIZATION OF POLYVINYL-ALCOHOL ACETATE) BY C-13 NMR AND THERMAL ANALYSES
BUGADA, DC
RUDIN, A
[J]. POLYMER, 1984, 25 (12) : 1759 - 1766
[3] FINCH CA, 1992, POLYVINYL ALCOHOL DE, pCH10
[4] REACTION OF POLY(VINYL ALCOHOL) WITH POTASSIUM PERSULFATE AND GRAFT COPOLYMERIZATION.
Ikada, Yoshito
Nishizaki, Yasuko
Sakurada, Ichiro
[J]. 1974, 12 (08): : 1829 - 1839
[5] POLY(VINYL ALCOHOL) GEL SUBLAYERS FOR REVERSE-OSMOSIS MEMBRANES .3. INSOLUBILIZATION BY CROSS-LINKING WITH POTASSIUM PEROXYDISULFATE
IMMELMAN, E
BEZUIDENHOUT, D
SANDERSON, RD
JACOBS, EP
VANREENEN, AJ
[J]. DESALINATION, 1993, 94 (02) : 115 - 132
[6] POLY(VINYL ALCOHOL) GEL SUBLAYERS FOR REVERSE-OSMOSIS MEMBRANES .2. INSOLUBILIZATION BY CROSS-LINKING WITH POLY(METHYL VINYL ETHER-ALT-MALEIC ANHYDRIDE)
IMMELMAN, E
SANDERSON, RD
JACOBS, EP
VANREENEN, AJ
[J]. DESALINATION, 1993, 94 (01) : 37 - 54
[7] POLY(VINYL ALCOHOL) GEL SUBLAYERS FOR REVERSE-OSMOSIS MEMBRANES .1. INSOLUBILIZATION BY ACID-CATALYZED DEHYDRATION
IMMELMAN, E
SANDERSON, RD
JACOBS, EP
VANREENEN, AJ
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 1993, 50 (06) : 1013 - 1034
[8] C-13 NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPY OF POLYVINYL ACETATE) AND POLYVINYL ALCOHOL)
INOUE, Y
CHUJO, R
NISHIOKA, A
[J]. POLYMER JOURNAL, 1973, 4 (03) : 244 - 252
[9] MOROSO D, 1966, CHIM IND-MILAN, V48, P120
[10] Randall J.C., 1977, POLYM SEQUENCE DETER

← 1 2 →