TY - JOUR

T1 - Molecular and Electrooptical Characteristics of Poly(1-trimethylsilyl-1- propynes) with Varied Chain Regularity

AU - Evlampieva, N. P.

AU - Pavlov, G. M.

AU - Zaitseva, I. I.

AU - Chirkova, M. V.

AU - Litvinova, E. G.

AU - Khotimskii, V. S.

AU - Ryumtsev, E. I.

PY - 2003/3

Y1 - 2003/3

N2 - Samples of a disubstituted polyacetylene, poly(1-trimethylsilyl-1-propyne), containing on the average 60% of cis-C=C bonds and prepared with NbCl 5 as catalyst were studied by means of Kerr effect measurements in solution and molecular hydrodynamics methods. The resulting data were correlated with the properties of the sample prepared with another catalytic system, TaCl5/BuLi. Samples prepared under different catalytic conditions were found to have much different electrooptical properties. It was concluded that the TaCl5/BuLi catalyst allows preparation of polymers with longer continuous sequences of monomeric units of the same isomeric structure as compared with those obtained with NbCl5.

AB - Samples of a disubstituted polyacetylene, poly(1-trimethylsilyl-1-propyne), containing on the average 60% of cis-C=C bonds and prepared with NbCl 5 as catalyst were studied by means of Kerr effect measurements in solution and molecular hydrodynamics methods. The resulting data were correlated with the properties of the sample prepared with another catalytic system, TaCl5/BuLi. Samples prepared under different catalytic conditions were found to have much different electrooptical properties. It was concluded that the TaCl5/BuLi catalyst allows preparation of polymers with longer continuous sequences of monomeric units of the same isomeric structure as compared with those obtained with NbCl5.

UR - http://www.scopus.com/inward/record.url?scp=0042210010&partnerID=8YFLogxK

U2 - 10.1023/A:1024941416319

DO - 10.1023/A:1024941416319

M3 - Article

AN - SCOPUS:0042210010

VL - 73

SP - 344

EP - 349

JO - Russian Journal of General Chemistry

JF - Russian Journal of General Chemistry

SN - 1070-3632

IS - 3

ER -