CONDENSATION EQUILIBRIA DURING THE SYNTHE SIS IN MELT OF ACETOXYCARBOXYLIC ACID-BASED POLYESTERS

Citation
Ln. Mizerovskii et al., CONDENSATION EQUILIBRIA DURING THE SYNTHE SIS IN MELT OF ACETOXYCARBOXYLIC ACID-BASED POLYESTERS, Vysokomolekularnye soedinenia. Seria A, 37(10), 1995, pp. 1628-1632
Citations number
6
Categorie Soggetti
Polymer Sciences
ISSN journal
05075475
Volume
37
Issue
10
Year of publication
1995
Pages
1628 - 1632
Database
ISI
SICI code
0507-5475(1995)37:10<1628:CEDTSS>2.0.ZU;2-V
Abstract
A method is proposed for the study of equilibrium polycondensation rea ctions, which is based on monitoring a single parameter representing t he equilibrium amount of a low-molecular-mass reaction product passing into the gas phase. The synthesis of liquid-crystalline polyesters by transacylation of acetoxycarboxylic acids is characterized by low equ ilibrium constant and very low solubility of CH3COOH vapors in the mel t of polyester.