Synthesis and photomodulation of rigid polyphenylene dendrimers with an azobenzene core

被引：79

作者：

Grebel-Koehler, D

Liu, DJ

De Feyter, S

Enkelmann, V

Weil, T

Engels, C

Samyn, C

Müllen, K

De Schryver, FC

机构：

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

[2] Katholieke Univ Leuven, Dept Chem, Lab Photochem & Spect, B-3001 Heverlee, Belgium

[3] Katholieke Univ Leuven, Dept Chem, Lab Macromol & Phys Organ Chem, B-3001 Heverlee, Belgium

来源：

MACROMOLECULES | 2003年 / 36卷 / 03期

关键词：

D O I：

10.1021/ma021135n

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of azobenzene-cored polyphenylene dendrimers have been synthesized. The photoresponsive properties of these dendrimers have been investigated by optical spectroscopy and gel permeation chromatography (GPC). These polyphenylene dendrimers exhibit a photoresponsive behavior upon UV and visible irradiation, resulting in a reversible and appreciable change of the dendrimer structure. Furthermore, the influence of dendrimer generation and degree of branching on the kinetic characteristics of the photoisomerization is discussed. The crystal structures of two precursors and two solvate structures of the first generation are presented.

引用

页码：578 / 590

页数：13

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