COMPARISON OF SOLUBILITY DATA FOR IRRADIATED POLYPROPYLENE

Journal Article · Fri Nov 01 04:00:00 EST 1963 · J. Polymer Sci., Pt. B

DOI:https://doi.org/10.1002/pol.1963.110011111· OSTI ID:4162935

Woodward, A E

A comparison was made of previous data on the irradiation of polypropylene in a gamma source, Van de Graaff electron generator, and in a nuclear reactor. It is illustrated that when the solubility function, S + S/sup 1/2/ is plotted against gamma dose, instead of total energy deposition (gamma dose/total dose = 0.565), for the reactor-irradiated samples, close agreement between the data for isotactic annealed film specimens and those for gamma irradiated isotactic film was found for 1/r values of about 0.005 to 0.04 Mrads/ sup -1/. It was also found that data for the reactor irradiated quenched isotactic film fall close to, but below the line for gamma irradiated atactic material, yielding an intercept of 0.43. However, decided differences occur for electron and gamma irradiated atactic polymer with the intercepts varying by a factor of two. The results were found to be in contrast to the previous conclusion that atactic and isotactic polypropylene have the sam G(S) value. (P.C.H.)

• Research Organization: Univ. of London
• NSA Number: NSA-18-000292
• OSTI ID: 4162935
• Journal Information: J. Polymer Sci., Pt. B, Journal Name: J. Polymer Sci., Pt. B Vol. Vol: 1
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
DECOMPOSITION
ELECTRON BEAMS
FILTERS
FUSED SALTS
GAMMA SOURCES
IRRADIATION
POLYMERS
POROSITY
PROPYLENE
SEPARATION PROCESSES
SOLUBILITY
TANTALUM COMPOUNDS
TRACE AMOUNTS
TUNGSTEN COMPOUNDS
VAN DE GRAAFF ACCELERATORS
YTTRIUM COMPOUNDS