LEE, SH KIM, JJ KIM, SS KIM, UY 2024-01-21T22:17:08Z 2024-01-21T22:17:08Z 2022-01-11 1993-07-15 0021-8995 https://pubs.kist.re.kr/handle/201004/146011 Polysulfone hollow fiber membranes were prepared via the dry-wet spinning process from dope solutions comprised of polysulfone, n-methyl-2-pyrrolidone, polyvinyl-2-pyrrolidone, and dodecylbenzene sulfonic acid, sodium salt. Morphology and performance of the membranes were affected by the compositions of coagulant and dope solution. Pore size and the water flux of the membrane increased by the addition of dodecylbenzene sulfonic acid, sodium salt to water in the coagulation bath, due to the changes of physicochemical properties of the outer coagulant. Addition of dodecylbenzene sulfonic acid, sodium salt to the dope solution also increased the pore size. The absence of polyvinyl-2-pyrrolidone, the pore forming agent, in the dope solution resulted in a remarkable decrease of pore size of the membrane. The distance between the spinneret and coagulation bath affected the membrane structure and performance. The membranes prepared in this study were suitable for hemofiltration in terms of molecular weight cut-off characteristics. English JOHN WILEY & SONS INC PHASE-SEPARATION MORPHOLOGY AND PERFORMANCE OF POLYSULFONE HOLLOW-FIBER MEMBRANE Article 10.1002/app.1993.070490317 1 JOURNAL OF APPLIED POLYMER SCIENCE, v.49, no.3, pp.539 - 548 JOURNAL OF APPLIED POLYMER SCIENCE 49 3 539 548 scie scopus A1993LH11600017 2-s2.0-0027628635 Polymer Science Polymer Science Article PHASE-SEPARATION