Accession Number : AD0674358

Title :   THE EFFECT OF SOLVENT ON THE UNPERTURBED DIMENSIONS OF POLYSTYRENE,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF APPLIED CHEMISTRY

Personal Author(s) : Cowie,J. M. G.

Report Date : 1968

Pagination or Media Count : 10

Abstract : The unperturbed root-mean-square radius of gyration of a polystyrene sample was measured in ten critical consolute mixtures. The values of the intrinsic viscosity and coil size were found to reach a maximum in the vicinity of the polymer solubility parameter. Preferential adsorption of the solvent component in the mixture, by polystyrene, was observed in each of the ternary systems examined. The variations in coil size and intrinsic viscosity were found to be mainly a function of solvent polarity and were not caused primarily by preferential adsorption, which was comparatively small in most of the mixtures. (Author)

Descriptors :   (*STYRENE PLASTICS, SOLUTIONS(MIXTURES)), MOLECULAR STRUCTURE, STEREOCHEMISTRY, ORGANIC SOLVENTS, VISCOSITY, ADSORPTION, REFRACTIVE INDEX, SOLUBILITY, CANADA

Subject Categories : Plastics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE