Accession Number:

AD0262953

Title:

THE DEPENDENCE OF THE 2ND VIRIALCOEFFICIENT ON THE CONSTITUTION OF THE ENDGROUP OF THE MACROMOLECULES

Descriptive Note:

Corporate Author:

FRITZ-HABER-INSTITUT DE MAX-PLANCK- GESELLSCHAFT BERLIN (GERMANY)

Personal Author(s):

Report Date:

1961-08-01

Pagination or Media Count:

1.0

Abstract:

A semimicro cryoscopic apparatus of high accuracy, based on the use of a Wheatstone bridge and a galvanometer system with thermistor, was developed to measure temperature. With this apparatus the 2nd virialcoefficients of four kinds of polystyrene, which have different endgroups, were determined in naphthaline. The error of the 2nd virialcoefficient was calculated. The influence of the endgroup on the 2nd virialcoefficient becomes effective with a degree of polymerization less than 15. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE