Pre-transition electrooptic properties of solutions of liquid-crystal polysiloxanes in the phase-separation region

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Pre-transition electrooptic properties of solutions of liquid-crystal polysiloxanes in the phase-separation region. / Ryumtsev, E. I.; Evlampieva, N. P.; Polushin, S. G.

In: Journal of Optical Technology (A Translation of Opticheskii Zhurnal), Vol. 65, No. 7, 07.1998, p. 531-534.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{ccbb8869faef44c4b082e93af2a95270,

title = "Pre-transition electrooptic properties of solutions of liquid-crystal polysiloxanes in the phase-separation region",

abstract = "This paper discusses the electrooptic Kerr effect in dilute solutions close to their stratification temperature and in melts in the neighborhood of the temperature of the isotropic-liquid-nematic-phase transition of two comb-shaped liquid-crystal polysiloxanes with different chemical structures of the mesogentc side groups. It is shown that pretransition effects associated with self-organization processes of the molecules of the polymers in the critical temperature region are observed both in solutions and in melts of the polymers. The largest variations were observed close to the stratification temperature of polysiloxane solutions, where not only did the absolute magnitude of the Kerr constant increase (by a factor of about 103), but the sign of the effect also changed. The electrooptic properties studied here in polysiloxanes are compared with the features of the chemical structure of the polymers and low-molecular-weight analogs of their mesogenic groups.",

author = "Ryumtsev, {E. I.} and Evlampieva, {N. P.} and Polushin, {S. G.}",

year = "1998",

month = jul,

language = "English",

volume = "65",

pages = "531--534",

journal = "Journal of Optical Technology (A Translation of Opticheskii Zhurnal)",

issn = "1070-9762",

publisher = "The Optical Society",

number = "7",

}

RIS

TY - JOUR

T1 - Pre-transition electrooptic properties of solutions of liquid-crystal polysiloxanes in the phase-separation region

AU - Ryumtsev, E. I.

AU - Evlampieva, N. P.

AU - Polushin, S. G.

PY - 1998/7

Y1 - 1998/7

N2 - This paper discusses the electrooptic Kerr effect in dilute solutions close to their stratification temperature and in melts in the neighborhood of the temperature of the isotropic-liquid-nematic-phase transition of two comb-shaped liquid-crystal polysiloxanes with different chemical structures of the mesogentc side groups. It is shown that pretransition effects associated with self-organization processes of the molecules of the polymers in the critical temperature region are observed both in solutions and in melts of the polymers. The largest variations were observed close to the stratification temperature of polysiloxane solutions, where not only did the absolute magnitude of the Kerr constant increase (by a factor of about 103), but the sign of the effect also changed. The electrooptic properties studied here in polysiloxanes are compared with the features of the chemical structure of the polymers and low-molecular-weight analogs of their mesogenic groups.

AB - This paper discusses the electrooptic Kerr effect in dilute solutions close to their stratification temperature and in melts in the neighborhood of the temperature of the isotropic-liquid-nematic-phase transition of two comb-shaped liquid-crystal polysiloxanes with different chemical structures of the mesogentc side groups. It is shown that pretransition effects associated with self-organization processes of the molecules of the polymers in the critical temperature region are observed both in solutions and in melts of the polymers. The largest variations were observed close to the stratification temperature of polysiloxane solutions, where not only did the absolute magnitude of the Kerr constant increase (by a factor of about 103), but the sign of the effect also changed. The electrooptic properties studied here in polysiloxanes are compared with the features of the chemical structure of the polymers and low-molecular-weight analogs of their mesogenic groups.

UR - http://www.scopus.com/inward/record.url?scp=0032115016&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032115016

VL - 65

SP - 531

EP - 534

JO - Journal of Optical Technology (A Translation of Opticheskii Zhurnal)

JF - Journal of Optical Technology (A Translation of Opticheskii Zhurnal)

SN - 1070-9762

IS - 7

ER -

ID: 74940794