Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy

doi:10.1080/10420150.2014.912652

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	Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy
	Sui, HL; Liu, XY; Zhong, FC; Li, XY; Wang, BY; Ju, X;王宝义
	2014
发表期刊	RADIATION EFFECTS AND DEFECTS IN SOLIDS
卷号	169 期号:7 页码:628-635
摘要	Polydimethylsiloxane rubber was irradiated at various radiation doses up to 800 kGy in air. The lifetime and intensity of the long component tau(3) were obtained by positron annihilation lifetime spectroscopy (PALS). The crystallization property and the molecular flexibility were estimated using the differential scanning calorimetry and dynamic thermomechanic analysis. Thermal volatile property was determined by thermogravimetry analysis. It was proved that the cross-linking reaction made the chain flexibility of the rubber to reduce gradually during gamma radiation, which resulted in the reduction of the o-Ps intensity observed by PALS. Although the degradation effect existed during gamma radiation, it was still less significant than the cross-linking effect when the radiation dose was up to 800 kGy.
关键词	positron annihilation lifetime polydimethylsiloxane free volume
学科领域	Nuclear Science & Technology; Physics
DOI	10.1080/10420150.2014.912652
收录类别	SCI
WOS记录号	WOS:000340191500007
引用统计
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/225319
专题	多学科研究中心
推荐引用方式 GB/T 7714	Sui, HL,Liu, XY,Zhong, FC,et al. Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy[J]. RADIATION EFFECTS AND DEFECTS IN SOLIDS,2014,169(7):628-635.
APA	Sui, HL,Liu, XY,Zhong, FC,Li, XY,Wang, BY,&Ju, X；王宝义.(2014).Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy.RADIATION EFFECTS AND DEFECTS IN SOLIDS,169(7),628-635.
MLA	Sui, HL,et al."Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy".RADIATION EFFECTS AND DEFECTS IN SOLIDS 169.7(2014):628-635.

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