The effect of the coagulation condition in the phase inversion method on the permeability characteristics of poly( propylene oxide ) or poly(tetramethylene oxide )segmented nylon 610 (PPO-Ny610 or PTMO-Ny610 ) hemodialysis membranes, the stability of the membrane performance, and the mechanical stre
Parameters affecting preparation of nylon-based hemodialysis membranes
β Scribed by Luttinger, Manfred ;Cooper, C. W.
- Book ID
- 102871490
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 583 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0021-9304
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β¦ Synopsis
Abstract
Nylonβbased membranes of greater dialyzing capacity than Cuprophan have been prepared by solution casting. Good permeability is being achieved by the use of diluents such as dimethylsulfoxide in the casting solution. Modifying resins, primarily epoxies, contribute to higher permeability, good aging stability, and heatβsealing properties. Drying time between film casting and water immersion as well as the temperature and composition of the immersion bath are important factors in membrane performance. Methods for attaching heparin to the film surface have been developed, thus imparting good blood compatibility to the membranes.
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In order to apply a blood-compatible polymer to hemodialysis membrane, a new polyether-segmented nylon which dissolved in common organic solvents was designed. The basic polyether-segmented nylon was synthesized by melt polycondensation from sebacic acid, m-xylenediamine, and a,v-bisaminopropyl-poly
The relationships between the morphologies and the permeability characteristics as dialysis membrane of polyether-segmented nylon 610 (PE-Ny610 ) have been investigated. PE-Ny610 used are poly (propylene oxide) (PPO) -segmented nylon 610 containing 25 wt % PPO (PPO-Ny610) and poly(ethylene oxide ) (
The biocompatibility of poly(propylene oxide)-segmented nylon610 (PPO-Ny610), poly(ethylene oxide)-segmented nylon610 (PEO-Ny610), poly(ethylene oxide)-segmented nylonM10 (PEO-NyM10), and poly(ethylene oxide)-segmented ny-lon69/M10 (PEO-Ny69/M10) hollow fibers were investigated in terms of the trans
The relationships of the surface morphologies to the surface chemical compositions in poly(ethylene oxide)-segmented nylon (PEO-Ny) membranes prepared by the phase-inversion method were studied using scanning electron microscopy (SEM), electron spectroscopy for chemical analysis (ESCA), and static s