Synthesis, Cocrystallization, and Microphase Separation of All-Conjugated Diblock Copoly(3-alkylthiophene)s

被引：82

作者：

Ge, Jing ^{[1
]}

He, Ming ^{[1
]}

Qiu, Feng ^{[1
]}

Yang, Yuliang ^{[1
]}

机构：

[1] Fudan Univ, Dept Macromol Sci, Minist Educ, Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

来源：

MACROMOLECULES | 2010年 / 43卷 / 15期

基金：

中国国家自然科学基金;

关键词：

THIN-FILM TRANSISTORS; ALKYL CHAIN-LENGTH; FIELD-EFFECT TRANSISTORS; COIL BLOCK-COPOLYMERS; REGIOREGULAR POLY(3-HEXYL THIOPHENE); HETEROJUNCTION SOLAR-CELLS; CHARGE-TRANSPORT; GROWTH POLYMERIZATION; MOLECULAR-WEIGHT; BEHAVIOR;

D O I：

10.1021/ma1010167

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 all-conjugated diblock copoly(3-alkylthiophene)s with varying alkyl chain length, poly(3-butylthiophene)-b-poly(3-hexylthiophcne) (P3BT-P3HT), poly(3-butylthiophene)-b-poly(3-dodecyl-thiophene) (P3BT-P3DDT), and poly(3-hexylthiophene)-b-poly(3-dodecylthiophene) (P3HT-P3DDT), were synthesized by modified Grignard metathesis polymerization. The obtained diblock copoly(3-alkylthiophene)s have well-controlled block ratios and molecular weights with narrow polydispersity indices. The diblock copoly(3-alkylthiophene)s comprised by the blocks with the alkyl side-chain length different by two carbon atoms (represented by P3BT-P3HT) have the ability of cocrystallizing into an uniform crystal domain, with the mutual interdigitation of the different side chains of the two blocks into a common interchain lamella. Other diblock copoly(3-alkylthiophene)s with the side chains different by more than two carbon atoms prefer to microphase separating into two crystal domains formed by the independent crystallization of each block. The A FM images revealed the characteristics of microphase-separated morphology in P3BT-P3DDT and P3HT-P3DDT diblock copoly(3-alkylthiophene)s.

引用

页码：6422 / 6428

页数：7

共 56 条

[1] Alkyl chain length dependence of the field-effect carrier mobility in regioregular poly(3-alkylthiophene)s [J].