MeV-Proton Induced Effect on Mesophase Structure of Polyethylene Terephthalate
| Autor: | G. N. Dash, M. Sahoo, B. Mallick |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Health (social science)
Materials science General Computer Science Proton Scattering General Mathematics General Engineering Analytical chemistry Mesophase Education chemistry.chemical_compound General Energy chemistry Polyethylene terephthalate Fiber Irradiation Fiber diffraction General Environmental Science Diffractometer |
| Zdroj: | Advanced Science Letters. 20:838-840 |
| ISSN: | 1936-6612 |
| DOI: | 10.1166/asl.2014.5376 |
| Popis: | High crystalline polyethylene terephthalate (PET) microfibres were irradiated (at low energy density regime, De ~10 23 eV/cm) with 2.4 MeV proton beam at 3 different fluences: 1×10 p/cm,1×10 p/cm and 1×10 p/cm. Because of irradiation, the fibre gets amorphized from its highly crystalline state after passing through an intermediate mesophase stage. The mesophase of polymers is well studied using wide-angle X-ray scattering, small-angle X-ray scattering, FTRaman scattering and nuclear magnetic resonance techniques. In the present paper, ion (proton) induced mesophase structure of PET was observed. X-ray fiber diffraction was carried out by adopting a special fiber mounting technique and using a diffractometer having Bragg-Brentano parafocusing optics. The sample irradiated at the lowest fluence showed the maximum percentage (7.05%) of mesophase. |
| Databáze: | OpenAIRE |
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