Preparation and properties of new wholly aromatic polyesters containing a terphenyl analogue of 1,3,4-thiadiazole in the main chain

Authors
Sato, M Takeuchi, S Hino, R
Citation
M. Sato et al., Preparation and properties of new wholly aromatic polyesters containing a terphenyl analogue of 1,3,4-thiadiazole in the main chain, MACRO RAPID, 20(7), 1999, pp. 373-377
Citations number
19
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
20
Issue
7
Year of publication
1999
Pages
373 - 377
Database
ISI
SICI code
1022-1336(199907)20:7<373:PAPONW>2.0.ZU;2-9
Abstract
Novel wholly aromatic polyesters 8 containing a terphenyl analogue of 1,3,4 -thiadiazole (2,5-diphenyl-1,3,4-thiadiazole) in the main chain were synthe sized by high-temperature solution polycondensation of a diacyl chloride de rivative of 2,5-diphenyl-1,3,4-thiadiazole 6 with four hydroquinones 7 in 1 -chloronaphthalene. These polymers 8 are insoluble in most organic solvents and decompose very rapidly above 400 degrees C in air without showing ther motropic liquid crystalline melts.