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首页> 外文期刊>Journal of Applied Polymer Science >Hemodialysis membrane prepared from cellulose/N-methylmorpholine-N-Oxide solution. III. The relationship between the drying condition of the membrane and its permeation behavior
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Hemodialysis membrane prepared from cellulose/N-methylmorpholine-N-Oxide solution. III. The relationship between the drying condition of the membrane and its permeation behavior

机译：由纤维素/ N-甲基吗啉-N-氧化物溶液制备的血液透析膜。三，膜的干燥条件与其渗透行为之间的关系

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摘要

The effects of drying condition on the performance (ultrafiltration rate, diffusive solute permeability, and sieving) of hemodialysis membranes prepared from cellulose /N-methylmorpholine-N-oxide (NMMO), solution (NMMO membrane) and cellulose/cuprammonium solution (cuprammonium membrane; the referential membrane) were studied. The drying condition investigated was the glycerin concentration of the solution, which was used to substitute glycerin for the water in the membrane before the membrane was dried. A lower glycerin concentration in the solution brought about a lower reswelling degree (water content) in the dried membrane in pure water, which resulted in a drop in the performance of the as-cast membrane. The NMMO membrane had a high water content and a high membrane performance compared with the cuprammonium membrane when both the membranes were treated under the same drying condition. The differences in the performance between both membrane series is discussed on the basis of the results of the observation of the membrane morphology by scanning electron microscopy, the observation of the crystallinity of the membranes by wide-angle X-ray diffraction, and the estimation of the pore structure of the membranes. (C) 2003 Wiley Periodicals, Inc. [References: 31]
机译：干燥条件对由纤维素/ N-甲基吗啉-N-氧化物（NMMO），溶液（NMMO膜）和纤维素/铜铵溶液（铜铵膜）制得的血液透析膜的性能（超滤速率，扩散溶质渗透性和筛分）的影响;参考膜）。研究的干燥条件是溶液中的甘油浓度，该浓度用于在膜干燥之前用甘油代替膜中的水。溶液中较低的甘油浓度导致纯水中的干燥膜中较低的溶胀度（水含量），这导致铸膜性能下降。当在相同的干燥条件下处理两个膜时，与铜铵膜相比，NMMO膜具有较高的水含量和较高的膜性能。根据扫描电子显微镜观察膜形态，广角X射线衍射观察膜的结晶度以及对H2O的估算结果，讨论了这两个膜系列之间性能的差异。膜的孔结构。 （C）2003 Wiley Periodicals，Inc. [参考：31]

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