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

被引：97

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.

引用

页数：7

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
Balanzat, E
Betz, N
Bouffard, S
[J]. 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
BALANZAT, E
BOUFFARD, S
LEMOEL, A
BETZ, N
[J]. 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
BETZ, N
LEMOEL, A
BALANZAT, E
RAMILLON, JM
LAMOTTE, J
GALLAS, JP
JASKIEROWICZ, G
[J]. 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
Buttafava, A
Consolati, G
Di Landro, L
Mariani, M
[J]. POLYMER, 2002, 43 (26) : 7477 - 7481
[7] CHEMICAL MODIFICATIONS IN IRRADIATED POLYMERS
CHAPIRO, A
[J]. 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
Chapiro, A
[J]. 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
Davenas, J
Stevenson, I
Celette, N
Cambon, S
Gardette, JL
Rivaton, A
Vignoud, L
[J]. 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
DAVENAS, J
XU, XL
BOITEUX, G
SAGE, D
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1989, 39 (1-4) : 754 - 763

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