Accession Number : ADA952728

Title :   Rubber Elasticity of Preswollen Polymer Networks.

Descriptive Note : Technical rept.,

Corporate Author : PRINCETON UNIV N J FRICK CHEMICAL LAB

Personal Author(s) : Shen,M. C. ; Tobolsky,A. V.

Report Date : JAN 1963

Pagination or Media Count : 39

Abstract : THE RUBBER ELASTICITY OF LIGHTLY CROSSLINKED PRESWOLLEN POLYMERS WAS STUDIED BY TORSION MEASUREMENTS. THE EQUATION OF STATE OF RUBBER ELASTICITY WAS APPLIED TO EVALUATE THEIR FRONT FACTORS, WHICH WERE FOUND TO DECREASE LINEARLYAS A FUNCTION OF INCREASING DILUENT CONTENT. THIS RELATION IS INDEPENDENT OF THE CROSSLINKER AND THE DILUENT USED, PROVIDED THAT THE DILUENT EXISTS IN MONOMERIC STATE. WHEN POLYMERIC DILUENTS ARE USED, THE DECREASE OF PHI BECOMES MUCH SHARPER. PROPERTIES OF DESWOLLEN POLYMER NETWORKS WERE ALSO INVESTIGATED. LITTLE CHANGE WAS OBSERVED BEFORE AND AFTER DESWELLING. THESE RESULTS ARE DISCUSSED IN THE LIGHT OF THE KINETIC THEORY OF RUBBER ELASTICITY. (AUTHOR-PL).

Descriptors :   *Polymers, *Acrylic resins, Alkanes, Benzene, Carboxyl groups, Elastic properties, Equations of state, Ethanes, Experimental data, Kinetic theory, Methanes, Oxygen, Sulfur, Photochemical reactions, Polymerization, Propenes, Shear stresses, Stresses, Torsion meters

Subject Categories : Physical Chemistry
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE