Membranes Polyvinyl alcohol membrane crosslinked with

Preparation of Polyvinyl Alcohol Membrane Crosslinked with Glutaraldehyde... 

Das P, Ray SK, Kuila SB, Samanta HS, Singha NR. 2011. Systematic choice of crosslinker and filler for pervaporation membrane—A case study with dehydration of isopropyl alcohol-water mixtures by polyvinyl alcohol membranes. Sep. Purif. Technol. 81 159-173. 

A list of typical commercial pervaporation membranes [23] is given in Table 3.1. Commercial hydrophilic membranes are very often made of polyvinyl alcohol (PVA), with differences in the degree of crosslinking. Commercial hydrophobic membranes often have a top layer in polydimethyl siloxane (PDMS). However, a wide variety of membrane materials for pervaporation can be found in the literature, including polymethylglutamate, polyacrylonitrile, polytetrafluoroethylene, polyvinylpyrrolidone, styrene-butadiene rubber, polyacrylic acid, and many others [24]. A comprehensive overview of membrane materials for pervaporation is given by Semenova et al. [25],... 

Electrophoresis protein separation membranes have been prepared by step-growth condensation of water-soluble polyvinyl alcohol with selected water-soluble difunctional crosslinking agents. These membranes have broad pore size ranges, restricted pore size distribution, greater resistance to hydrolysis in an alkaline medium, and improved gel clarity when higher amounts of crosslinkers are used. 

TABLE 1. Membranes prepared by reacting selected crosslinking agents with 10 ml of 5% solution of polyvinyl alcohol having a M of ronghly 20,000 daltons and 97.5% to 99.5 % hydrolyzed. 

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