Side group rotational mobility in hairy-rod polymers: A dielectric spectroscopy study

被引：14

作者：

Bockstaller, M

Fytas, G

Wegner, G

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[2] FORTH, Inst Elect Struct & Laser, Heraklion 71110, Crete, Greece

来源：

MACROMOLECULES | 2001年 / 34卷 / 10期

关键词：

D O I：

10.1021/ma001863f

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The side group rotational mobility in hairy-rod polymers was studied using dielectric spectroscopy. The anisotropic side chain dynamics were also observed in liquid crystalline polymers. The broad dielectric loss spectra of fluorocarbon groups in ordered diblock copolymers and undiluted carbosilane dendrimers showed the evidence of the presence of a bimodal orientation relaxation function. The motional rates for the side group and segmental orientation were observed to be similar above about 40 wt %.

引用

页码：3497 / 3499

页数：3

共 9 条

[1]

CREMER C, 1997, J CHEM PHYS, V106, P3730

[2]

DOI M, 1996, THEORY POLYM DYNAMIC, V126, P85

[3] Component segmental mobilities in an athermal polymer blend: Quasielastic incoherent neutron scattering versus simulation [J].