Loading...

Synthesis of Composite Membranes Based on Polyaniline for Gas Separation

Oftadeh, Fatemeh | 2010

454 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 40378 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Forounchi, Masoud
  7. Abstract:
  8. Polymeric membranes based on polyaniline and PVDF were prepared by using cast-solvent film method. The effects of various parameters including polyaniline synthesis temparature, thickness of the PANI/PVDF films and feed pressure were investigated. The results obtained from exprimental data showed increasing permeability with reducing the thickness of the film and increasing feed pressure. Increasing polyaniline synthesis temprature increased the permeability of PANI/PVDF films. Reducing the films thikcness and increasing the feed pressure decreased the selectivity of films for the , and . The results showed increasing selectivity for PANI/PVDF films by using PANI produced at 10°C. Morphology and thermal behavior of the sampels were characterized with Scanning Electron Microscope (SEM) and Diffrentioal Scanning Calorimetry (DSC). Structural confirmation of the synthesized PANI was carried out by Fourier Transform Infrared (FTIR) and UV-visible analysis. The distribution of particle size of prepared PANI nanoparticles was measured by a particle size analyser. Electron micrograph of the cross section of composite membranes showed a spongeous PVDF support layer and a dense polyaniline layer. The polyaniline surface of composite membranes was defect-free.

  9. Keywords:
  10. Membranes ; Polyaniline ; Selectivity ; Permeability

 Digital Object List

 Bookmark

No TOC