Silane-Crosslinked Asymmetric Polythiosemicarbazide Membranes for Organic Solvent Nanofiltration

被引：14

作者：

Aburabie, Jamaliah ^{[1
]}

Emwas, Abdul-Hamid ^{[2
]}

Peinemann, Klaus-Viktor ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol, Adv Membranes & Porous Mat Ctr, Thuwal 239556900, Saudi Arabia

[2] King Abdullah Univ Sci & Technol, Imaging & Characterizat Core Lab, Thuwal 239556900, Saudi Arabia

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2019年 / 304卷 / 01期

关键词：

membrane; organic/inorganic hybrid material; organic solvent nanofiltration; polythiosemicarbazide; FILM COMPOSITE MEMBRANES; POLYBENZIMIDAZOLE MEMBRANES; RESISTANT; LINKING; OSN; NANOPARTICLES; PERFORMANCE; SEPARATION; FLOW;

D O I：

10.1002/mame.201800551

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crosslinked polythiosemicarbazide (PTSC) membranes with a positively charged surface are fabricated via a reaction with (3-glycidyloxypropyl)trimethoxysilane. The integrally asymmetric ultrafiltration membranes discussed here can be easily prepared by water-induced phase separation using a PTSC solution in dimethylsulfoxide (DMSO). The crosslinked PTSC membranes are stable in DMSO, N,N-dimethylformamide, and tetrahydrofuran and they reject molecules of molecular weights (MW) above 1300 g mol(-1). The influence of the crosslinking agent on the surface charge, membrane solvent resistance, and membrane performance is discussed. The crosslinked asymmetric PTSC membranes totally reject Direct Red dye (MW 1373 g mol(-1)), while the pristine PTSC membrane does not show any rejection for this dye. This finding suggests that an inorganic-type-network is formed during the crosslinking reaction, which tunes the pore size of the prepared membranes.

引用

页数：9

共 48 条

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