Crystalline Diblock Conjugated Copolymers: Synthesis, Self-Assembly, and Microphase Separation of Poly(3-butylthiophene)-b-poly(3-octylthiophene)

被引：182

作者：

Wu, Pei-Tzu ^{[1
,2
]}

Ren, Guoqiang ^{[1
,2
]}

Li, Chaoxu ^{[3
,4
]}

Mezzenga, Raffaele ^{[3
,4
,5
]}

Jenekhe, Samson A. ^{[1
,2
]}

机构：

[1] Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA

[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA

[3] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[4] Univ Fribourg, Fribourg Ctr Nanomat, CH-1700 Fribourg, Switzerland

[5] Nestle Res Ctr, CH-1000 Lausanne 26, Switzerland

来源：

MACROMOLECULES | 2009年 / 42卷 / 07期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

COIL BLOCK-COPOLYMERS; SOLID-STATE PROPERTIES; EFFICIENT SOLAR-CELLS; FIELD-EFFECT MOBILITY; TRIBLOCK COPOLYMERS; CHARGE-TRANSPORT; ROD; POLYMERS; ACCEPTOR; BLENDS;

D O I：

10.1021/ma802874v

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 synthesis and self-assembly of crystalline-crystalline diblock copoly(3-alkylthiophene)s were reported. The synthesis was carried out by a modified Grignard metathesis method (GRIM), while P3OT block was synthesized by polymerization of 2,5-dibromo-3-octylthiophene, followed by the addition of activated 2,5-dibromo-3-butylthiophene monomer solution, which produced the diblock copolymer system 'poly(3-butylthiophene)-b-poly(3-octylthiophene)'. Optical absorption and photoluminescence (PL) spectroscopies were used to investigate photophysical properties of the regioregular diblock copoly(3-alkylthiophene)s. It was observed that both composition of poly(3-butylthiophene)-b-poly(3-octylthiophene) in solution self-assembled into crystalline nanowires with widths of 13.5-13.6 nm and aspect ratios of 15-74. These diblock copolymers in the melt phase had the ability to self-assemble into a microphase-separated lamellar structure.

引用

页码：2317 / 2320

页数：4

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