TY - JOUR

T1 - Dielectric relaxation of dendronized polystyrene in solutions

AU - Kovshik, Svetlana

AU - Mikhailova, Mariya

AU - Polushina, Galina

AU - Rjumtsev, Evgeni

AU - Kovshik, Alexander

AU - Lezov, Andrey

PY - 2005/9/15

Y1 - 2005/9/15

N2 - The molecular properties of polystyrene modified by Frechet-type dendrons of the first-fourth generation containing polar CONH groups, were studied by means of the dielectric spectroscopy method in dilute solutions. The dispersion of the dielectric permittivity of dendronized polystyrene was found in benzene, chloroform and THF solutions in the electric field frequency range 0.2 kHz-10 MHz. It was established that the increase of dendron generation number leads to the growth of the relaxation times of dielectric polarization. It was found that the dipole moment of the monomer unit of the polystyrene molecules modified by first generation dendrons coincides with the dipole moment of CONH group.

AB - The molecular properties of polystyrene modified by Frechet-type dendrons of the first-fourth generation containing polar CONH groups, were studied by means of the dielectric spectroscopy method in dilute solutions. The dispersion of the dielectric permittivity of dendronized polystyrene was found in benzene, chloroform and THF solutions in the electric field frequency range 0.2 kHz-10 MHz. It was established that the increase of dendron generation number leads to the growth of the relaxation times of dielectric polarization. It was found that the dipole moment of the monomer unit of the polystyrene molecules modified by first generation dendrons coincides with the dipole moment of CONH group.

UR - http://www.scopus.com/inward/record.url?scp=24344442773&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2005.05.037

DO - 10.1016/j.jnoncrysol.2005.05.037

M3 - Article

AN - SCOPUS:24344442773

VL - 351

SP - 2723

EP - 2727

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

IS - 33-36 SPEC. ISS.

ER -