EFFECT OF POLYMER MOLECULAR WEIGHT, SOLVENT AND CASTING SOLUTION COMPOSITION ON THE PORE SIZE AND THE PORE SIZE DISTRIBUTION OF POLYETHERSULFONE (VICTREX) MEMBRANE
EFFECT OF POLYMER MOLECULAR WEIGHT, SOLVENT AND CASTING SOLUTION COMPOSITION ON THE PORE SIZE AND THE PORE SIZE DISTRIBUTION OF POLYETHERSULFONE (VICTREX) MEMBRANE
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DOI：
10.1080/00986449008911463
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发表时间：
1990-09
影响因子：
2.5
通讯作者：
T. Miyano;T. Matsuura;S. Sourirajan-
中科院分区：
文献类型：
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作者：
T. Miyano;T. Matsuura;S. Sourirajan-
研究了聚醚砜（Victrex）聚合物的分子量、溶剂性质和聚合物浓度对铸膜溶液中聚合物的有效流体动力学半径的影响。从上述研究的铸膜溶液制备膜，并用聚乙二醇溶质进行超滤实验。从以上获得的超滤性能数据进一步计算膜表面上的平均孔径和孔径分布。发现铸膜液中聚合物的有效流体动力学半径与膜表面的平均孔径之间存在很强的相关性。根据聚合物粒径与孔径的关系，提出了孔的形成机理。
The effect of the molecular weight of polyethersulfone (Victrex) polymers, the nature of the solvent and the polymer concentration on the effective hydrodynamic radius of polymer in the membrane casting solution was investigated. The membranes were prepared from the casting solutions studied above and ultrafiltration experiments were performed with polyethylene glycol solutes. The average pore sizes and the pore size distributions on the membrane surfaces were further calculated from the ultrafiltration performance data obtained above. Strong correlations were found between the effective hydrodynamic radius of the polymer in the casting solution and the average pore size on the membrane surface. The mechanism of the pore formation was proposed on the basis of the polymer size—pore size correlation.