Accession Number:

AD0773934

Title:

Poly(Ethylene Carbonate) and Poly(Propylene Carbonate): Transitions and Thermomechanical Spectra.

Descriptive Note:

Technical rept. Sep-Dec 73,

Corporate Author:

PRINCETON UNIV N J DEPT OF CHEMICAL ENGINEERING

Personal Author(s):

• Gillham,J. K.
• Udipi,K.

Report Date:

1974-01-01

Pagination or Media Count:

12.0

Abstract:

The transitions and thermomechanical spectra 1 cps of amorphous polyethylene carbonate, amorphous polypropylene carbonate and their 11 blend, as measured by torsional braid analysis, are reported. The blend is a two phase mixture rather than a solution. Influence of intra and inter molecular factors on the transitions is discussed. Modified author abstract

Descriptors:

• *Thermomechanics
• Rigidity
• Amorphous materials
• Torsion
• Phase transformations
• Polyethylene plastics
• Polypropylene
• Phase studies
• Nuclear magnetic resonance
• Spectrum analysis

Subject Categories:

• Physical Chemistry
• Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE