Preparation and characterization of novel porous PMMA-SiO2 hybrid membranes

Muhammad Ali Zulfikar, A. Wahab Mohammad, Nidal Hilal

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Poly(methyl methacrylate) (PMMA)-SiO2 composite membranes were prepared by casting ternary solutions obtained by adding additional amounts of TEOS to PMMA solutions. Methods to obtain an intimate dispersion of the inorganic particles in the PMMA solutions were developed. Various samples of hybrid membranes were prepared by varying some of the preparative parameters such as the PMMA solvent (tetrahydrofuran, and N,N-dimethyl formamide) and the PMMA/TEOS ratio in the ternary solution. Membranes were also cast from a binary solution of PMMA and solvent for comparison. The membranes were characterized by water permeability, scanning electron microscope observations, DSC and TGA analysis and ultrafiltration tests. The effects of the above-mentioned preparative parameters on the structure, thermal behavior, flux and dextran retention properties of the membranes are discussed.

Original languageEnglish
Pages (from-to)262-270
Number of pages9
JournalDesalination
Volume192
Issue number1-3
DOIs
Publication statusPublished - 10 May 2006
Externally publishedYes

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Keywords

  • Organic-inorganic membranes
  • Poly(methyl methacrylate)
  • TEOS
  • Ultrafiltration properties

ASJC Scopus subject areas

  • Filtration and Separation

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