Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Aqueous Phase Separation Membranes Prepared by Polyelectrolyte Complexation: A Review

고분자 전해질 복합체를 통해 제조된 aqueous phase separation membranes에 대한 총론

  • Gwangmin Jo (Department of Polymer Engineering, Graduate School, Chonnam National University) ;
  • Yejin Jeong (School of Polymer Science and Engineering, Chonnam National University) ;
  • Jiwoo Kim (School of Polymer Science and Engineering, Chonnam National University) ;
  • Yeongun Ko (Department of Polymer Engineering, Graduate School, Chonnam National University)
  • 조광민 (전남대학교 고분자공학과 대학원) ;
  • 정예진 (전남대학교 고분자융합소재공학부) ;
  • 김지우 (전남대학교 고분자융합소재공학부) ;
  • 고영운 (전남대학교 고분자공학과 대학원)
  • Received : 2024.08.31
  • Accepted : 2024.09.30
  • Published : 2024.10.30
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Abstract

Membrane technology has been used in separation processes such as wastewater treatment, desalination, and hemolysis. However, in proccess of the non-solvent-induced phase separation (NIPS) which is the most widely adopted method for fabricating porous polymer membranes, using toxic organic solvents is a critical problem for environmental aspect. To resolve this problem, the aqueous phase separation (APS) has received attention, which produces polymeric membranes without using the organic solvent. In this review, we provide principle and process of APS. The ratio of monomers, pH and salt concentration in aqueous solution, viscosity of casting solutions, and concentration of cross-linkers can leverage the structures of membranes.

멤브레인 기술은 폐수 처리, 담수화, 혈액 투석 등의 분리 공정에서 사용되고 있다. 하지만, 고분자 멤브레인을 만들기 위해 사용되는 비용매상전이 방식에서 환경에 유해하고 독성인 유기 용매를 사용한다는 문제점이 있다. 따라서 비용매상전이 방식에서 사용되는 유기 용매를 물로 대체해 고분자 멤브레인을 제작하는 aqueous phase separation (APS) 방법이 주목받고 있다. 본 총설에서는 APS의 원리와 APS를 통한 멤브레인의 제작 공정을 소개하고자 한다. 멤브레인의 구조는 단량체의 비율, 수용액의 pH와 염 농도 차이, 캐스팅 용액의 점도, 가교제 농도를 통해 조절할 수 있다.

Keywords

Acknowledgement

이 논문은 2021년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과임(과제번호: 2021RIS-002). 또한, 이 논문은 전남대학교 학술연구비(과제번호: 2024-0369)지원에 의하여 연구되었음.

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