Fabrication of Block Copolymer Membranes via SNIPS Process
- Authors
- Woo, Sanghoon; Kim, Jinhee; Lee, Junghyun; Bang, Joona
- Issue Date
- 4월-2017
- Publisher
- KOREAN INSTITUTE CHEMICAL ENGINEERS
- Keywords
- PS-b-P4VP; SNIPS; Block copolymer membrane; Relative humidity
- Citation
- KOREAN CHEMICAL ENGINEERING RESEARCH, v.55, no.2, pp.214 - 219
- Indexed
- SCOPUS
KCI
- Journal Title
- KOREAN CHEMICAL ENGINEERING RESEARCH
- Volume
- 55
- Number
- 2
- Start Page
- 214
- End Page
- 219
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/83997
- DOI
- 10.9713/kcer.2017.55.2.214
- ISSN
- 0304-128X
- Abstract
- In this work, we fabricated PS-b-P4VP block copolymer membranes from self-assembly and non-solvent induced phase separation (SNIPS), which combines the block copolymer self-assembly and conventional NIPS process. While previous studies mostly focused on the fabrication of well-defined structures, we systematically examined various processing parameters such as polymer concentration, solvent evaporation duration, solvent composition, and humidity, to optimized the membrane structures. As a result, the morphology of PS-b-P4VP membranes was optimized at a certain polymer concentration in solution and composition of volatile solvent at low humidity conditions, resulting in SNIPS separation membranes with well-defined nanopores on the surface, 75% of membrane porosity, and 18% of surface porosity.
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- Appears in
Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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