Structural and Optical Investigations of Radiation Damage in Transparent PET Polymer Films

被引：105
作者：
Prasad, Shiv Govind [1 ]
De, Abhijit [2 ]
De, Udayan [3 ]
机构：
[1] Uttar Pradesh Text Technol Inst, Dept Chem, Kanpur 208001, Uttar Pradesh, India
[2] Presidency Coll, Dept Phys, Kolkata 700073, India
[3] Variable Energy Cyclotron Ctr, 1 AF Bidhannagar, Kolkata 700064, India
来源：
INTERNATIONAL JOURNAL OF SPECTROSCOPY | 2011年
关键词：
D O I：
10.1155/2011/810936
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Effects of gamma irradiation at different doses up to 135 kGy on polyethylene terephthalate (PET) polymer films have been investigated by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and ultraviolet-visible (UV-VIS) spectroscopy. From XRD analysis, it was found that even at a high dose of gamma irradiation of 135 kGy, crystallinity of the PET samples remain unchanged. However, the FTIR peak at 871 cm(-1) (depicting C-H bending mode of out-of-plane vibration) and another at 1303 cm(-1) (representing C-H bending mode of in-plane vibration) disappear for gamma-irradiated PET. In this study, it has also been found that gamma-irradiation in air enhances the optical absorption in the wavelength region 320-370 nm. This has been attributed to free radicals being produced in the polymer by the gamma-radiation. Further, the free radicals react with oxygen of air to form carbonyl group and hydroxyls. With increasing gamma-dose, there is a red shift of the UV-near visible cutoff for PET. XRD and FTIR observations on gamma-damage have been correlated.
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共 29 条
[1]  
Abou Zeid HM, 2000, J APPL POLYM SCI, V75, P179, DOI 10.1002/(SICI)1097-4628(20000110)75:2<179::AID-APP1>3.3.CO
[2]  
2-2
[3]   Swift heavy ion modification of polymers [J].
Balanzat, E ;
Betz, N ;
Bouffard, S .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1995, 105 (1-4) :46-54
[4]   PHYSICOCHEMICAL MODIFICATIONS INDUCED IN POLYMERS BY SWIFT HEAVY-IONS [J].
BALANZAT, E ;
BOUFFARD, S ;
LEMOEL, A ;
BETZ, N .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1994, 91 (1-4) :140-145
[5]   A FTIR STUDY OF PVDF IRRADIATED BY MEANS OF SWIFT HEAVY-IONS [J].
BETZ, N ;
LEMOEL, A ;
BALANZAT, E ;
RAMILLON, JM ;
LAMOTTE, J ;
GALLAS, JP ;
JASKIEROWICZ, G .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1994, 32 (08) :1493-1502
[6]   γ-irradiation effects on polyethylene terephthalate studied by positron annihilation lifetime spectroscopy [J].
Buttafava, A ;
Consolati, G ;
Di Landro, L ;
Mariani, M .
POLYMER, 2002, 43 (26) :7477-7481
[7]   CHEMICAL MODIFICATIONS IN IRRADIATED POLYMERS [J].
CHAPIRO, A .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1988, 32 (1-4) :111-114
[8]   General consideration of the radiation chemistry of polymers [J].
Chapiro, A .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1995, 105 (1-4) :5-7
[9]   Stability of polymers under ionising radiation: The many faces of radiation interactions with polymers [J].
Davenas, J ;
Stevenson, I ;
Celette, N ;
Cambon, S ;
Gardette, JL ;
Rivaton, A ;
Vignoud, L .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2002, 191 :653-661
[10]   RELATION BETWEEN STRUCTURE AND ELECTRONIC-PROPERTIES OF ION IRRADIATED POLYMERS [J].
DAVENAS, J ;
XU, XL ;
BOITEUX, G ;
SAGE, D .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1989, 39 (1-4) :754-763
123