Published 1994 | Version v1
Journal article Metadata-only

Study of radicals formed by polyethylenetherephtalate radiolysis

Creators

  • 1. Department of Chemistry, University of Bucharest, 13 Carol Blvd, RO-70346 Bucharest (Romania)

Description

The paramagnetic centers formed by polyethylenetherephtalate (PET) radiolysis, both in the presence and in the absence of air, is studied by ESR. Radiation doses between 10-4 Gy and 6x10-5 Gy from a 60 Co radiation source were used to irradiate the PET samples in vacuum . The irradiation of PET samples in the presence of air were performed with electron beams from a Van de Graaff accelerator which provides radiation doses of 4.5x104 Gy/min. The kinetics of radical thermal recombination is presented and an adequate radiolysis mechanism is proposed. (author)

Additional details

Additional titles

Original title (Romanian)
Studiul radicalilor formati la radioliza polietilentereftalatului

Publishing Information

Journal Title
Revista de Chimie
Journal Volume
45
Journal Issue
3
Journal Page Range
p. 188-194
ISSN
0034-7752

INIS

Country of Publication
Romania
Country of Input or Organization
Romania
INIS RN
32044800
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
ACRYLIC ACID; COBALT 60; ELECTRON BEAMS; ELECTRON SPIN RESONANCE; GAMMA RADIATION; IRRADIATION; POLYETHYLENES; RADIATION DOSES; RADICALS; RADIOLYSIS; VAN DE GRAAFF ACCELERATORS
Descriptors DEC
ACCELERATORS; BEAMS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBOXYLIC ACIDS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; COBALT ISOTOPES; DECOMPOSITION; DOSES; ELECTROMAGNETIC RADIATION; ELECTROSTATIC ACCELERATORS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEPTON BEAMS; MAGNETIC RESONANCE; MINUTES LIVING RADIOISOTOPES; MONOCARBOXYLIC ACIDS; NUCLEI; ODD-ODD NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PARTICLE BEAMS; POLYMERS; POLYOLEFINS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; RESONANCE; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
13 refs., 8 figs.