RADIATION-INDUCED CROSS-LINKING OF WATER-SOLUBLE POLYMERS IN THEIR AQUEOUS SOLUTIONS
Radiation effects on mixtures of 2 of the following watersoluble polymers, PVA, PVP, PAM, MC, and PMAA, in aqueous solutions were studied by using Co/sup 60/ gamma rays at 6.2 x 10/sup 4/ r/hr at 25 deg C for 0 to 130 min. The concentration of each polymer in the solution was below the critical value for gel formation, while a mixture of the polymers was above the critical value. Networks between 2 different polymer components were formed if both polymers were cross-linking types, but the network formation was retarded if one of the 2 polymers was a degradative type. The degree of cocross-linking in the PVA-PVP system was studied by viscosity measurements of the irradiated solutions and the solubility of the irradiated polymers in methanol, The gelation dosage for a mixture of 2 polymers was proportional to the ratio of polymer dissolved in the solution. The network formation of cross-linking-type polymers in their aqueous solutions was retarded by the presence of MC. (OID)
- Research Organization:
- Government Industrial Research Inst., Nagoya, Japan
- NSA Number:
- NSA-17-001545
- OSTI ID:
- 4765046
- Journal Information:
- Nagoya Kogyo Gijutsu Shikensho Hokoku (Japan), Vol. Vol: 10; Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
RADIATION-INDUCED EFFECTS ON WATER-SOLUBLE POLYMERS IN THEIR AQUEOUS SOLUTIONS. II. CO-CROSSLINKING BETWEEN TWO DIFFERENT POLYMERS
RADIATION-INDUCED EFFECTS ON WATER-SOLUBLE POLYMERS IN AQUEOUS SOLUTIONS. I. PARTIALLY ACETYLATED POLYVINYL ALCOHOL