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Proton-Induced Crosslinking of CR 6-2 Polycarbonate
Faculty
Science
Year:
2009
Type of Publication:
Article
Pages:
2724-2731
Authors:
Nouh, S. A, Mohamed, Amal, Marie, H. K
DOI:
10.1002/app.29902
Journal:
JOURNAL OF APPLIED POLYMER SCIENCE JOHN WILEY \& SONS INC
Volume:
112
Research Area:
Polymer Science
ISSN
ISI:000265076100017
Keywords :
protons irradiation, polycarbonate, structural properties, thermal properties, mechanical properties
Abstract:
CR 6-2 polycarbonate samples were irradiated using different fluences (10(11)-10(14) ions/cm(2)) of 1 MeV protons. The structural modifications in the proton-irradiated CR 6-2 samples have been studied as a function of fluence using different characterization techniques such as X-ray diffraction, intrinsic viscosity of the liquid samples, as a measure of the mean molecular mass, Fourier transform infrared spectroscopy, thermogravimetric analysis, differential thermal analysis, refractive index, color difference, and mechanical properties. The results indicate that the irradiation of CR 6-2 detector at the fluence range 1 x 10(12)-5 x 10(14) ions/cm(2) causes intermolecular crosslinking and allows the formation of covalent bonds between different chains, leading to a more compact structure of CR 6-2 polymer, which resulted in an improvement in its thermal, optical, and mechanical properties. Also, this crosslinking reduces the ordering structure and increases the amorphous regions that enhance the polymer resilience. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 2724-2731, 2009
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