Research output: Contribution to journal › Article › peer-review
Nature of the electro-optical effect in solutions of a comb-shaped polymer with mesogenic side groups. / Lezov, A. V.; Mikhailova, M. E.; Kovshik, S. A.; Polushina, G. E.; Ryumstev, E. I.
In: Polymer Science - Series A, Vol. 45, No. 7, 01.07.2003, p. 656-660.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Nature of the electro-optical effect in solutions of a comb-shaped polymer with mesogenic side groups
AU - Lezov, A. V.
AU - Mikhailova, M. E.
AU - Kovshik, S. A.
AU - Polushina, G. E.
AU - Ryumstev, E. I.
PY - 2003/7/1
Y1 - 2003/7/1
N2 - Electric and dynamic birefringence and dielectric polarization of dilute solutions of polyphenylmethacrylic ester of cetyloxybenzoic acid in tetrachloromethane were studied. It was shown that the times of the rise in electric birefringence and its free relaxation as measured in a rectangular-pulsed field coincide with times characterizing dispersions of the constant constituent of the Kerr effect and of the dielectric polarization of solutions. Based on analysis of the relaxation characteristics, it was shown that macromolecules of the comb-shaped polymer with mesogenic groups orient in an electric field due to induced dipole moment arising from the polarization of a molecular coil. The polarization of macromolecules was found to result from the orientation of dipole moments of side polar groups of the polymer under application of an external field.
AB - Electric and dynamic birefringence and dielectric polarization of dilute solutions of polyphenylmethacrylic ester of cetyloxybenzoic acid in tetrachloromethane were studied. It was shown that the times of the rise in electric birefringence and its free relaxation as measured in a rectangular-pulsed field coincide with times characterizing dispersions of the constant constituent of the Kerr effect and of the dielectric polarization of solutions. Based on analysis of the relaxation characteristics, it was shown that macromolecules of the comb-shaped polymer with mesogenic groups orient in an electric field due to induced dipole moment arising from the polarization of a molecular coil. The polarization of macromolecules was found to result from the orientation of dipole moments of side polar groups of the polymer under application of an external field.
UR - http://www.scopus.com/inward/record.url?scp=0041832233&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0041832233
VL - 45
SP - 656
EP - 660
JO - Polymer Science - Series A
JF - Polymer Science - Series A
SN - 0965-545X
IS - 7
ER -
ID: 33911641