Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy

	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
刊名	RADIATION EFFECTS AND DEFECTS IN SOLIDS
	2014
卷号	169 期号:7 页码:628-635
关键词	positron annihilation lifetime polydimethylsiloxane free volume
英文摘要	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.
学科主题	Nuclear Science & Technology; Physics
收录类别	SCI
WOS记录号	WOS:000340191500007
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225319]
专题	中国科学院高能物理研究所
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.