Positron Annihilation Lifetime Spectroscopic Analysis to Demonstrate Flux-Enhancement Mechanism of Aromatic Polyamide Reverse Osmosis Membranes

양전자 소멸시간 분광분석을 통한 방향족 폴리아미드 역삼투 분리막의 수투과 향상 메커니즘 제시

  • Kim, Sung-Ho (School of Materials Science and Engineering, Seoul National University) ;
  • Kwak, Seung-Yeop (School of Materials Science and Engineering, Seoul National University)
  • Published : 2004.05.01

Abstract

Flux-enhancement mechanism of thin-film-composite (TFC) membranes for the reverse comosis (RO) process was newly explained by positron annihilation lifetime spectroscopy (PALS) that has been found to be applied for detecting molecular vacancies or pores having sizes that are equivalent to salt or hydrate ions in RO membrane.(omitted)

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