Accession Number : AD0461292

Title :   PHYSICAL AND RHEOLOGICAL PROPERTIES OF NITROSO RUBBERS.

Descriptive Note : Quarterly rept. no. 5, 25 Jun-24 Sep 64,

Corporate Author : MONSANTO RESEARCH CORP EVERETT MA

Personal Author(s) : Ball, G. L., III ; Gilman, L. ; Wilson, H. S. ; Salyer, I. O.

Report Date : 24 OCT 1964

Pagination or Media Count : 15

Abstract : Two nitroso gum samples were characterized as to molecular weight and similarity. Intrinsic viscosity measurements indicated molecular weights of from 1.38 to 1.57 x 10 to the 6th power. Insoluble content varied from 6 to 37% and fingerprinting by solution viscosity indicated that the two nitroso gums were different. Three solvents, FC-75, FC-43 and Freon 113, proved adequate for viscosity measurements. Light scattering measurements on an old 3M-produced gum indicated a weight average molecular weight of 400,000 as was predicted from viscosity measurements. (Author)

Descriptors :   (*SYNTHETIC RUBBER, PHYSICAL PROPERTIES), VISCOSITY, MOLECULAR WEIGHT, ORGANIC SOLVENTS, CHEMICAL PROPERTIES.

Distribution Statement : APPROVED FOR PUBLIC RELEASE