Accession Number : ADA952673

Title :   The Viscoelastic Behavior of Polycarbonate of Bisphenol A ((4 Hydroxyphenyl) 2-2' Propane Polycarbonate).

Descriptive Note : Technical rept.,

Corporate Author : PRINCETON UNIV N J FRICK CHEMICAL LAB

Personal Author(s) : Mercier,J. P. ; Aklonis,J. J. ; Tobolsky,A. V.

Report Date : MAY 1963

Pagination or Media Count : 36

Abstract : THE VISCOELASTIC PROPERTIES OF THE POLYCARBONATE OF BISPHENOL A WERE STUDIED UNDER SMALL STRESS FROM 120 TO 200 C. IN THIS TEMPERATURE RANGE, THE POLYMER BEHAVES LIKE A NORMAL AMORPHOUS MATERIAL WHOSE VISCOELASTIC PROPERTIES CAN BE EXPLAINED BY REFERRING TO THE FREE VOLUME THEORY; FLORY'S HYPOTHESIS OF ISO-FREE VOLUME AT T SUB G IS VERIFIED. THIS STUDY THROWS NO LIGHT ON THE ANOMALOUSLY HIGH IMPACT STRE1H EXHIBITED BY THE POLYMER BELOW ITS GLASS TRANSITION TEMPERATURE. (AUTHOR-PL).

Descriptors :   *Polycarbonates, *Viscoelasticity, Phenols, Vitreous state, Stresses, Mechanical properties

Subject Categories : Physical Chemistry
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE