Relating substitution to single-chain conformation and aggregation in poly(p-phenylene vinylene) films

被引：46

作者：

Kemerink, M

van Duren, JKJ

Jonkheijm, P

Pasveer, WF

Koenraad, PM

Janssen, RAJ

Salemink, HWM

Wolter, JH

机构：

[1] Eindhoven Univ Technol, COBRA Interuniv Res Inst, NL-5600 MB Eindhoven, Netherlands

[2] Eindhoven Univ Technol, Lab Macromol & Organ Chem, NL-5600 MB Eindhoven, Netherlands

[3] Eindhoven Univ Technol, Dutch Polymer Inst, NL-5600 MB Eindhoven, Netherlands

来源：

NANO LETTERS | 2003年 / 3卷 / 09期

关键词：

D O I：

10.1021/nl034317j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The morphology of films of PPV derivatives is studied with molecular (single chain) resolution by phase-imaging scanning force microscopy. It is found that the symmetry of substitution is directly related to surface morphology and aggregation behavior. The molecular resolution in the phase contrast is shown to result from van der Waals interaction between the conjugated backbone of the polymer chains and the metallic tip, and can quantitatively be described by a simple harmonic oscillator model.

引用

页码：1191 / 1196

页数：6

共 20 条

[1] Parametric tip model and force-distance relation for Hamaker constant determination from atomic force microscopy [J].