Temperature-Dependent Multidimensional Self-Assembly of Polyphenylene-Based "Rod-Coil" Graft Polymers

被引：67

作者：

Huang, Yinjuan ^{[1
]}

Mai, Yiyong ^{[1
]}

Yang, Xianwen ^{[1
]}

Beser, Uliana ^{[2
]}

Liu, Junzhi ^{[2
]}

Zhang, Fan ^{[1
]}

Yan, Deyue ^{[1
]}

Muellen, Klaus ^{[2
]}

Feng, Xinliang ^{[1
,3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

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

[3] Tech Univ Dresden, Dept Chem & Food Chem, D-01062 Dresden, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2015年 / 137卷 / 36期

基金：

上海市自然科学基金;

关键词：

BLOCK-COPOLYMERS; MICELLES;

D O I：

10.1021/jacs.5b07487

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a novel type of "rod-coil" graft copolymer containing a polyphenylene backbone linked with poly(ethylene oxide) (PEO) side chains. Such graft copolymers manifest unprecedented temperature-dependent one-dimensional (1D) and two-dimensional (2D) self-assembly in solution. At 20 degrees C, which is higher than the crystallization temperature (T-c) of the PEO chains, the achiral graft copolymers self-organize into nanoribbons that twist into similar to 30 mu m ultralong helices with controlled pitch depending on the grafting ratio of the PEO chains. At 10 degrees C, which is lower than the T-c, quadrangular multilayer sheets of over 10 mu m in lateral size are obtained. To our knowledge, this work presents the first example of controlled self-assembly of graft polymers into 1D helix and 2D sheet superstructures.

引用

页码：11602 / 11605

页数：4

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