Molecular conformation changes of PET films under high-energy Ar ion bombardment

	Molecular conformation changes of PET films under high-energy Ar ion bombardment
	Liu, CL; Jin, YF; Zhu, ZY; Sun, YM; Hou, MD; Wang, ZG; Wang, YB; Zhang, CH; Chen, XX; Liu, J
	2000-06
关键词	Ar ion irradiation PET amorphization chain scissions modification in molecular structure
卷号	169
页码	72-77
英文摘要	Investigation of the surface modification in molecular structure of semicrystalline polyethylene terephthalate (PET) films induced by Ar ion bombardment is presented. The PET samples are analysed by using Fourier transform infrared spectroscopy (FTIR), X-ray diffractometer (XRD), and X-ray photoelectron spectroscopy (XPS). A significant loss of crystallinity is observed, which is related to the configuration transformation of ethylene glycol residue from the trans into the gauche. Chain scissions are observed at the para position of di-substituted benzene rings, -C=O bonds and C-O bonds. The C-O bonds are destroyed more selectively than -C=O bonds. The benzene ring structures show only small change under irradiation and do not participate in degradation process. Extra C=C bonds and alkyne end groups are created above a critical dose of 4.0 MGy. The results are briefly discussed. (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:000088184200015
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/58122]
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,Jin, YF,Zhu, ZY,et al. Molecular conformation changes of PET films under high-energy Ar ion bombardment[C]. 见:.