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Citation:
Yuan Yuzhen, Jing Xiabin, Jiang Bingzheng, Feng Zhiliu. Annealing Behaviour of Irradiated Polyethylene Single Crystals[J]. Chinese Journal of Applied Chemistry,
;1997, 14(4): 46-49.
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The annealing behaviour of irradiated polyethylene(PE) single crystals was studied with Mixed-Crystals IR spectroscopy, SAXS, WAXD and DSC. The results were:(1) There are both adjacent reentry folding and random stems in the PE single crystals, the former is predominant. (2) In the annealing below or at 90℃, reptation is the major molecular motion, and it leads to improvement of the crystal structure to limited extent; partial fusion and recrystalization are involved in the annealing at 105℃. (3) The crosslinking and damage in the crystal region caused by irradiation prevents the PE crystals from being improved.
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Keywords:
- polyethylene,
- deuterated polyethylene,
- irradiation,
- infrared,
- annealing
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