TY - JOUR

T1 - Effect of fullerene C60 as a branching center on molecular and polarization properties of star-shaped polystyrenes

AU - Yevlampieva, N. P.

AU - Vinogradova, L. V.

AU - Ryumtsev, E. I.

PY - 2006/1/1

Y1 - 2006/1/1

N2 - The behavior of molecules of a star-shaped six-arm polystyrene with a covalently bound fullerene C60 as a branching center was studied by viscometry and by measuring the electrooptical Kerr effect and the dielectric polarization in solutions. It was shown that polarization and electrooptical characteristics of a fullerene-containing polystyrene (C60 ∼ 3 wt %) differ by an order of magnitude or even greater from the corresponding characteristics of the parent polymer. A comparison of the above properties with the analogous characteristics of the model hexaadduct (the products of reaction between octyllithium and fullerene C60) demonstrated that a difference in the behavior of the star-shaped polystyrene and its parent analog is associated with the structural features of the branching center, among which is the occurrence of six proton addends that are bonded rather weakly to the fullerene cage in the hexaadducts under study.

AB - The behavior of molecules of a star-shaped six-arm polystyrene with a covalently bound fullerene C60 as a branching center was studied by viscometry and by measuring the electrooptical Kerr effect and the dielectric polarization in solutions. It was shown that polarization and electrooptical characteristics of a fullerene-containing polystyrene (C60 ∼ 3 wt %) differ by an order of magnitude or even greater from the corresponding characteristics of the parent polymer. A comparison of the above properties with the analogous characteristics of the model hexaadduct (the products of reaction between octyllithium and fullerene C60) demonstrated that a difference in the behavior of the star-shaped polystyrene and its parent analog is associated with the structural features of the branching center, among which is the occurrence of six proton addends that are bonded rather weakly to the fullerene cage in the hexaadducts under study.

UR - http://www.scopus.com/inward/record.url?scp=33645136224&partnerID=8YFLogxK

U2 - 10.1134/S0965545X06010123

DO - 10.1134/S0965545X06010123

M3 - Article

AN - SCOPUS:33645136224

VL - 48

SP - 85

EP - 90

JO - Polymer Science - Series A

JF - Polymer Science - Series A

SN - 0965-545X

IS - 1

ER -