Polish version

Login form

register


Print

L. Makaruk, I. Daniewska, E. Utzig


Liquid crystalline characteristics of poly(ethylene adipate) modified with p-acetoxybenzoic acid


Polimery 1989, No 10, 444


DOI: dx.doi.org/10.14314/polimery.1989.444


Summary

Poly(ethylene adipate) has been modified with p-acetoxybenzoic acid to prepare liquid crystalline polymer with a possibly low temperature of mesophase transition. The product of modification has been divided into two fractions: I — soluble in acetone and II — insoluble in acetone. Both fractions have been investigated by the methods of elementary analysis. IR-spectroscopy, light microscopy, X-ray analysis and DSC-method — thus, their chemical and crystalline structure have been determined. It has been found that fraction I is a thermotropic liquid-crystalline system of nematic structure existing in the temperature range from —30 to about 100°C. Fraction II is most probably poly(p-hydroxybenzoic acid).


If you are interested in full versions of articles, please contact the editorial team of polimery@ichp.pl