Conducting block copolymer nanowires containing regioregular poly(3-hexylthiophene) and polystyrene

被引:74
|
作者
Iovu, Mihaela C. [1 ]
Jeffries-El, Malika [1 ]
Zhang, Rui [1 ]
Kowalewski, Tomasz [1 ]
Mccullough, Richard D. [1 ]
机构
[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
基金
美国国家科学基金会;
关键词
conjugated polymers; regioregular poly(3-hexylthiophene); block-copolymers; anionic polymerization; atom transfer radical polymerization;
D O I
10.1080/10601320600997906
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Grignard Metathesis polymerization (GRIM) for the synthesis of regioregular poly(3-alkylthiophenes) proceeds via a "living" chain growth mechanism. Due to the "living" nature of this polymerization regioregular poly(3-alkylthiophenes) with predetermined molecular weight, narrow molecular weight distributions and desired chain end functionality are now readily available. Allyl terminated poly(3-hexylthiophene) was successfully used as a precursor for the synthesis of di-block copolymers containing polystyrene. The addition of "living" poly(styryl)lithium to the allyl terminated regioregular poly(3-hexylthiophene) generated the di-block copolymer. Poly(3-hexylthiophene)-b-polystyrene was also synthesized by atom transfer radical polymerization. Integration of poly(3-hexylthiophene) in di-block copolymers with polystyrene leads to the formation of nanowire morphology and self-ordered conducting nanostructured materials.
引用
收藏
页码:1991 / 2000
页数:10
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