THE DEGRADATION IN SOLID-STATE OF POLYVINYL-ALCOHOL BY GAMMA-IRRADIATION

Authors
LU GX CHEN HY LIU DY
Citation
Gx. Lu et al., THE DEGRADATION IN SOLID-STATE OF POLYVINYL-ALCOHOL BY GAMMA-IRRADIATION, Radiation physics and chemistry, 42(1-3), 1993, pp. 229-232
Citations number
4
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
42
Issue
1-3
Year of publication
1993
Pages
229 - 232
Database
ISI
SICI code
0969-806X(1993)42:1-3<229:TDISOP>2.0.ZU;2-R
Abstract
The viscosity of polyvinyl alcohol (PVA) (Powder form) falls after irr adiation. Gel does not occur after a dosage of above 1000 kGy. The G - values for scission under various conditions were measured. Irradiati on of PVA brings about an increase in the intensity of a number of ban ds in the UV spectrum. It is shown that formation of unsaturated bonds and carbonyl groups occur under irradiation. The other one of radioly sis products is organic acid. After irradiation, the hydrolysis degree is unchanged.