Accession Number : ADA184086

Title :   Structure of Thermotropic Polyesters with Large Substituents.

Descriptive Note : Technical rept. no. 4, 1-27 Aug 87,

Corporate Author : CONNECTICUT UNIV STORRS INST OF MATERIALS SCIENCE

Personal Author(s) : Chin,H H ; Azaroff,L V ; Furukawa,A ; Lenz,R W

PDF Url : ADA184086

Report Date : 27 Aug 1987

Pagination or Media Count : 12

Abstract : Thermotropic aromatic polyesters were aligned by drawing from nematic melts and by quenching in a magnetic field of 15 tesla and subsequently examined by x ray diffraction. The degree of alignment obtained depended slightly on the substituent (H, F, C1, Br, CH3, NO2) present with the highest degree of alignment observed when the arylsulfonyl substituted group contained in the para-position H or F and the lowest when it contained Br or CH3.

Descriptors :   *POLYESTER FIBERS, AROMATIC HYDROCARBONS, X RAY DIFFRACTION

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE