Accession Number:

AD0293291

Title:

THE CRYSTALLINITY OF POLYOLEFINS

Descriptive Note:

Corporate Author:

MASSACHUSETTS UNIV AMHERST POLYMER RESEARCH INST

Personal Author(s):

Report Date:

1962-08-01

Pagination or Media Count:

1.0

Abstract:

Recently a new and simple method for determination of crystallinity of polyethylene and polypropylene was presented by P. H. Hermans and his co-worker. In this laboratory, his method was applied to some samples of polyethylene and polypropylene, and the results compared with other data obtained by means of x-ray and infrared absorption methods. The method consists of an adoption of quantities proportional to the crystalline and amorphous contents, and obtaining a linear relationship between them APPLICABLE TO OTHER SAMPLES. In the case of polyethylene the integrated intensity of the 110 and 200 peaks was selected as a quantity proportional o the crystalline region and the integrated area or height of amporphous peak at theta 19.60 degrees for hat of the amorphous region. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE