Accession Number:

AD0491473

Title:

AROMATIC POLYMERS FOR THERMALLY-STABLE FIBERS AND FILMS

Descriptive Note:

Rept. for 1 Feb-1 Aug 63,

Corporate Author:

DU PONT DE NEMOURS (E I) AND CO WILMINGTON DE

Personal Author(s):

Report Date:

1964-05-01

Pagination or Media Count:

32.0

Abstract:

Poly2,2m-phenylene-5,56,6-bibenzimidazole has been prepared and dry spun in viscosities ranging from 0.65 to 0.94 DMSO. Tensile prop erties were studied as a function of polymer viscosity. Thermal stability of these fibers has been evaluated. Polybenzimidazole polymers and random copolymers were prepared with varying percentages of isophthalate and terephthalate linkages. Thermal and tensile properties of these polymers and fibers made from them were compared with poly2,2m-phenylene-5,56,6bibenzimidazole. The copolymers were found to be essentially equivalent to the homopolymer in all respects. Preliminary process studies were carried out.Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE