Study of effects in polyethylene terephthalate films induced by high energy Ar ion irradiation

	Study of effects in polyethylene terephthalate films induced by high energy Ar ion irradiation
	Liu, CL; Zhu, ZY; Jin, YF; Sun, YM; Hou, MD; Wang, ZG; Wang, YB; Zhang, CH; Chen, XX; Liu, J
	2000-06
关键词	high energy Ar ion irradiation polyethylene terephthalate bond breaking free radical absorbed dose
卷号	169
页码	78-82
英文摘要	Semicrystalline polyethylene terephthalate (PET) foil stacks were irradiated with 1.373 GeV Ar ions to different fluences ranging from 1.0 x 10(10) to 5.0 x 10(12) ions/cm(2). The induced effects were investigated by means of the Fourier transform, infrared spectroscopy (FTIR), ultraviolet-visible absorption spectroscopy (UV/VIS) and electron spin resonance spectroscopy (ESR). FTIR measurements show that bond breaking professes are mainly observed at the ethylene glycol residue of trans configuration and at the para position of benzene rings above a critical dose of about 4.0 MGy. Damage cross-section has been extracted for the band at 973 cm(-1) from the dependence of the absorbance on fluence and it shows a linear dependence on the mean electronic energy loss. UV/VIS measurements show a strong increase in absorbance in the ultraviolet and visible regions. It is found that for the same absorbed dose, more increase in absorbance is induced at higher electronic energy loss. ESR measurements indicate the creation of free radicals. The radical concentration is found to increase rapidly with the increasing absorbed dose above 4.0 MGy. (C) 2000 Elsevier Science B.V. All rights reserved.
会议录	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
会议录出版者	ELSEVIER SCIENCE BV
会议录出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS记录号	WOS:000088184200016
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/58189]
专题	中国科学院近代物理研究所
通讯作者	Liu, CL
作者单位	Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Liu, CL,Zhu, ZY,Jin, YF,et al. Study of effects in polyethylene terephthalate films induced by high energy Ar ion irradiation[C]. 见:.