THE PROPERTIES OF ELECTRETS AND PIEZOELECTRICS BASED ON THERMOTROPIC LIQUID-CRYSTALLINE POLYMERS WITH MESOGENIC GROUPS IN THE BACKBONE

Authors
LUSHCHEIKIN GA DREVAL VE KULICHIKHIN VG
Citation
Ga. Lushcheikin et al., THE PROPERTIES OF ELECTRETS AND PIEZOELECTRICS BASED ON THERMOTROPIC LIQUID-CRYSTALLINE POLYMERS WITH MESOGENIC GROUPS IN THE BACKBONE, Vysokomolekularnye soedinenia. Seria A, 40(9), 1998, pp. 1511-1515
Citations number
12
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
40
Issue
9
Year of publication
1998
Pages
1511 - 1515
Database
ISI
SICI code
0507-5475(1998)40:9<1511:TPOEAP>2.0.ZU;2-0
Abstract
Liquid-crystalline (LC) polymeric electrets and piezoelectrics with me sogenic groups in the backbone were synthesized and characterized. The samples were obtained on the basis of copolyesters of p-hydroxybenzoi c acid with PET or with 6,2-hydroxynaphthoic acid. It is demonstrated that these polymers provide the obtaining of highly stable electrets a nd piezoelements with a piezoelectric modulus of 15-2 pC/N. Piezoelect rics made of a polymer based on 6,2-hydroxynaphthoic acid are superior to the piezoelectrics made of the PET-based copolyester with respect to time stability and working temperature interval.