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
Descriptors:
Subject Categories:
- Physical Chemistry
- Polymer Chemistry
- Thermodynamics