Accession Number : AD0275807

Title :   OSMOMETRY OF HIGH POLYMER SOLUTIONS

Corporate Author : PICATINNY ARSENAL DOVER N J FELTMAN RESEARCH LABS

Personal Author(s) : LEE,HSUEH T. ; VALLES,RICHARD J. ; LEVI,DAVID W.

Report Date : JUN 1962

Pagination or Media Count : 1

Abstract : OSMOTIC PRESSURE MEASUREMENTS ON THREE ALKYL METHACRYLATE POLYMERS ARE DESCRIBED. These include an unfractionated poly(n-docosyl methacrylate) and samples of fractionated poly(n-lauryl methacrylate) and poly(2-ethylbutyl methacrylate). Weight average/number average molecular wt. ratios ranged from about 10 for the unfractionated material to 1.5 - 2 for the fractionated samples. Osmotic second virial coefficients were obtained. From experimental M sub w and M sub n values, viscosity average molecular weights were estimated. Relations between viscosity and the various types of average molecular weights are described and discussed. (Author)

Descriptors :   *ACRYLIC RESINS, *OSMOTIC PRESSURE, *POLYMERS, ALKYL RADICALS, METHYL RADICALS, MOLECULAR WEIGHT, PHYSICAL CHEMISTRY, VISCOSITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE