✦ LIBER ✦

Polyether-segmented nylon hemodialysis membranes. IV. Membrane morphologies and permeability characteristics of dialysis membrane composed of poly(ethylene oxide)-segmented Ny69/M10

✍ Scribed by Akira Mochizuki; Yukio Seita; Nobuko Saiga; Shuzo Yamashita

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 267 KB
Volume: 65
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19970829)65:9<1731::aid-app9>3.0.co;2-g

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✦ Synopsis

Dialysis membrane was prepared by a phase inversion method using a new polyether-segmented nylon which dissolves in common organic solvents such as dimethylsulfoxide. The polyether-segmented nylon contained poly(ethylene oxide ) block and nylon block (random copolyamide: Ny69/M10 ) prepared by sebacic acid, azelaic acid, m-xylenediamine, and hexamethylenediamine. The morphologies and permeability characteristics of the membranes were investigated. It was shown by scanning electron microscope observation that the membrane had a fingerlike structure when dimethylsulfoxide was used as a polymer solvent, and a spongelike structure when an additive such as calcium chloride was added to the polymer solution. The high permeability for the solutes such as urea and vitamin B 12 were observed in comparison with the polyether-segmented Ny610 membranes prepared by a phase inversion method.

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