PREPARATION AND CHARACTERIZATION OF FLUORINE-CONTAINING AROMATIC CONDENSATION POLYMERS .5. AROMATIC POLYBENZIMIDAZOLES FROM 4,4'-(HEXAFLUOROISOPROPYLIDENE)DIBENZOIC ACID AND AROMATIC TETRAMINE TETRAHYDROCHLORIDES

Citation
Y. Saegusa et al., PREPARATION AND CHARACTERIZATION OF FLUORINE-CONTAINING AROMATIC CONDENSATION POLYMERS .5. AROMATIC POLYBENZIMIDAZOLES FROM 4,4'-(HEXAFLUOROISOPROPYLIDENE)DIBENZOIC ACID AND AROMATIC TETRAMINE TETRAHYDROCHLORIDES, Macromolecular chemistry and physics, 198(2), 1997, pp. 619-625
Citations number
18
Categorie Soggetti
Polymer Sciences
ISSN journal
10221352
Volume
198
Issue
2
Year of publication
1997
Pages
619 - 625
Database
ISI
SICI code
1022-1352(1997)198:2<619:PACOFA>2.0.ZU;2-8
Abstract
Two novel fluorine-containing aromatic polybenzimidazoles were synthes ized by direct polycondensation of 4,4'-(hexafluoroisopropylidene)dibe nzoic acid with 3,3'-diaminobenzidine tetrahydrochloride and 1,2,4,5-b enzenetetramine tetrahydrochloride. The effect of introduction of fluo rine on the synthesis and properties of these polymers is discussed. T he new polybenzimidazoles show good solubility in organic solvents, ex cellent mechanical properties and high thermal stability.