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2020 Fiscal Year Final Research Report

Creation of novel high-performance organic-inorganic hybrid reverse osmosis membranes by adding hydrophilic POSS filler

Research Project

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Project/Area Number 18K14287
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 35020:Polymer materials-related
Research InstitutionTokyo University of Science

Principal Investigator

Ymamoto Kazuki  東京理科大学, 理工学部先端化学科, 助教 (20633910)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywords逆浸透膜 / POSS / フィラー / ポリシルセスキオキサン / 海水淡水化
Outline of Final Research Achievements

In order to improve the performance of organic-inorganic hybrid reverse osmosis membranes, composite membranes containing hydrophilic cage silsesquioxane (POSS) as a filler were prepared and evaluated.
The combination of various polymer matrices and POSS derivatives, as well as the membrane formation method, were investigated, and the interfacial polymerization membranes using amino group-containing silsesquioxane and carboxyl group-containing cage silsesquioxane showed a maximum 2.5-fold increase in water permeance depending on the amount of POSS. Improvement of membrane performance was achieved by the addition of POSS.

Free Research Field

高分子材料

Academic Significance and Societal Importance of the Research Achievements

逆浸透膜は、海水淡水化を用途として材料化学および実用面の両観点から注目されている。本研究では、有機-無機ハイブリッド膜に添加剤として親水基を持つかご型シルセスキオキサン(POSS)を用いることで、膜の親水化と細孔サイズの拡大の効果を検証した。種々の条件を検討したところ、POSSの添加により水透過性の性能向上する結果が得られ、添加剤として有用であることを明らかにした。以上により、水分離膜における性能向上のための新しい手法を提案した。

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Published: 2022-01-27  

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