Positron Lifetimes and Crystallinity of γ-Irradiated Polypropylenes

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The microstructure of the polypropylenes (PP) irradiated by gamma ray was studied by positron lifetime technique and differential scanning calorimetry (DSC). Lifetime measurement shows o-Ps intensity decreases with increasing γ irradiation dose. The crystallinity of irradiated samples was detected by DSC method. The correlation between o-Ps intensity and crystallinity indicates γ-ray can induce higher crystallinity in the polypropylene at low irradiation dose.

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Edited by:

Jozef Krištiak, Jan Kuriplach and Pradeep K. Pujari

Pages:

163-166

Citation:

Z. Chen et al., "Positron Lifetimes and Crystallinity of γ-Irradiated Polypropylenes", Materials Science Forum, Vol. 733, pp. 163-166, 2013

Online since:

November 2012

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$38.00

[1] D. Babic, V.T. Stannett. Radiat. Phys. Chem. 30 (1987) p.183.

[2] C. Albano. Nucl. Instr. and Meth. B 208 (2003) p.485.

[3] M. Eldrup, D. Lightbody, and J.N. Sherwood. Chem. Phys. 63(1981) p.51.

[4] S.J. Tao. J. Chem. Phys. 56 (1972) p.5499.

[5] M.A. Al-Ma'adeed, I.Y. Al-Qaradawi, N. Madi, N. Al-Thani. Appl. Surf. Sci. 252 (2006) p.3316.

[6] I.Y. Al-Qaradawi, N. Madi, A. Turos, A.M. Abdul-Kader. Radiat. Phys. Chem. 76 (2007) p.123.

[7] Z. Chen, W. Huang, P.F. Fang, H.M. Wang, S.J. Wang, J. Xiong, Y.S. Xu. Nucl. Instr. and Meth. B 266 (2008) p.117.

[8] A.K. O'Brien, C.N. Bowman. Macromolecules. 39 (2006) p.2501.