Statistical analysis of nitrogen-containing vinyl copolymers: radiation-induced copolymerization of vinyl acetate and N-vinyl-2-pyrrolidone

Journal Article · Thu Nov 15 00:00:00 EST 1979 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1979.070241008· OSTI ID:5685506

Peppas, N A; Gehr, T W.B.

Radiation-induced copolymerization of vinyl acetate and N-vinyl-2-pyrrolidone was carried out at 5/sup 0/C using ..gamma..-irradiation of 1450 rads/min. Copolymers prepared at conversions lower than 5% were analyzed by a saponification technique. Various linear and nonlinear statistical analysis techniques were used to determine the reactivity ratios of this system as r/sub 1/ = 0.348 and r/sub 2/ = 3.108. These data were examined and analyzed in relation to problems of elemental analysis involving nitrogen-containing copolymers and to discrepancies in the reactivity ratios obtained by previous investigators. The presence of oxygen and a higher dose rate did not affect the copolymer composition within statistical error. Hydrolyzed copolymers prepared by this method have potential applications as biocompatible materials.

• Research Organization: Purdue Univ., West Lafayette, IN
• OSTI ID: 5685506
• Journal Information: J. Appl. Polym. Sci.; (United States), Vol. 24:10
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
36 MATERIALS SCIENCE
VINYL MONOMERS
CHEMICAL RADIATION EFFECTS
ACETIC ACID ESTERS
COPOLYMERIZATION
COPOLYMERS
NITROGEN
PYRROLIDONES
SAPONIFICATION
STATISTICS
SYNTHESIS
USES
X RADIATION
AMIDES
AZOLES
CARBOXYLIC ACID ESTERS
CHEMICAL REACTIONS
CHEMISTRY
CRYOGENIC FLUIDS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELEMENTS
ESTERS
FLUIDS
HETEROCYCLIC COMPOUNDS
HYDROLYSIS
IONIZING RADIATIONS
LACTAMS
LYSIS
MATHEMATICS
MONOMERS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERIZATION
POLYMERS
PYRROLES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
SOLVOLYSIS
400600* - Radiation Chemistry
360406 - Materials- Polymers & Plastics- Radiation Effects- (-1987)