Synthesis and characterization of poly(methyl methacrylate)/SiO2 hybrid membrane

Muhammad Ali Zulfikar, A. Wahab Mohammad, Abdul Amir Kadhum, Nidal Hilal

Research output: Contribution to journalArticlepeer-review

Abstract

Hybrid organic-inorganic membranes were fabricated using sol-gel technique using poly(methyl methacrylate) (PMMA) and tetraethyl orthosilicate (TEOS) with 80/20 (w/w) ratios with THF solvent. The thin films were then characterized using FTIR, SEM, EDX, DSC, TGA, water permeability and also its molecular weight cut-off. From the preliminary characterization, the hybrid membrane was found to have nano and ultra scale tight pore ranges. FT-IR spectroscopy uncovered all the signature peaks characteristic of silicate structures in the near-surface regions. Fingerprints of Si{single bond}O{single bond}Si groups in cyclic and linear molecular substructures are present. The SEM image clearly shows that hybrid membranes have homogenous and smooth surface. EDX analysis shows the composition of particles in the membrane. DSC analysis of the membrane shows interesting phenomenon regarding glass transition temperature (Tg). The hybrid membrane was found to have higher Tg than pure PMMA. From TGA analysis, the hybrid membranes were observed to have higher thermal stability than pure PMMA.

Original languageEnglish (US)
Pages (from-to)422-426
Number of pages5
JournalMaterials Science and Engineering A
Volume452-453
DOIs
StatePublished - Apr 15 2007

Keywords

  • Hybrid membrane
  • Inorganic-organic
  • PMMA
  • Sol-gel
  • TEOS

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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