Accession Number:

AD0641867

Title:

THERMODYNAMIC PROPERTIES OF POLYBUTENE-1 AND BUTENE-1,

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1966-09-20

Pagination or Media Count:

18.0

Abstract:

Using published specific heat data, the entropy, enthalpy, and Gibbs free energy of polybutene-1 PB were calculated over the temperature range 0 to 315K. The encraty, C sub pT vs. T, calculated for PB exhibits a maximum at 60K and a small inflection at about 250K, which is associated with the glass transition. The difference, C sub p-C sub v, was calculated at 298.15K and found to be 0.047 calgm deg. The thermodynamic functions were also calculated for butene-1. At 265K the entropy of polymerization is 32.57 calmole deg, and the free energy of polymerization was found to be -12.1 kcalmole. Author

Subject Categories:

  • Physical Chemistry
  • Polymer Chemistry
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE