Accession Number : ADA952690

Title :   The Role of Hydrogen Bonds in the Viscoelastic Properties of Amorphous Polymer Networks.

Descriptive Note : Technicl 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 : 38

Abstract : THE INFLUENCE OF HYDROGEN BONDS ON THE VISCOELASTIC PROPERTIES IS STUDIED BY CONSTRUCTING THE MODULUS-TEMPERATURE CURVES OF A SERIES OF HOMO- AND COPOLYMERS OF METHACRYLATES. IT IS SEEN THAT ONLY THE INFLECTION TEMPERATURES CHANGE AS A FUNCTION OF THE DEGREE OF HYDROGEN BONDING. THE GLASSY MODULI, THE RUBBERY MODULI AND THE SLOPES AT THE TRANSITION REGION REMAIN ESSENTIALLY CONSTANT. PHYSICAL INTERPRETATIONS ON THE MOLECULAR SCALE ARE GIVEN TO EXPLAIN THE EXPERIMENTAL OBSERVATIONS. (AUTHOR-PL).

Descriptors :   *Polymers, *Hydrogen bonds, *Viscoelasticity, Copolymers, Methacrylates, Transition temperature, Vitreous state, Amorphous materials

Subject Categories : Physical Chemistry
      Polymer Chemistry
      Plastics
      Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE