Poly(3-alkyltellurophene)s Are Solution-Processable Polyheterocycles
摘要:
The synthesis and characterization of a series of poly(3-allcyltellurophene)s are described. Polymers are prepared by both electrochemical and Kumada catalyst transfer polymerization methods. These polymers have reasonably high molecular weights (M-n = 5.4-11.3 kDa) and can be processed in a manner analogous to that of their lighter atom analogues. All examples exhibit red-shifted optical absorption, as well as solid-state organization, as evidenced by absorption spectroscopy and atomic force microscopy. Overall, the synthesis and characterization of these materials open up a wide range of future studies involving tellurium-based polyheterocycles.
Poly(3-alkyltellurophene)s Are Solution-Processable Polyheterocycles
摘要:
The synthesis and characterization of a series of poly(3-allcyltellurophene)s are described. Polymers are prepared by both electrochemical and Kumada catalyst transfer polymerization methods. These polymers have reasonably high molecular weights (M-n = 5.4-11.3 kDa) and can be processed in a manner analogous to that of their lighter atom analogues. All examples exhibit red-shifted optical absorption, as well as solid-state organization, as evidenced by absorption spectroscopy and atomic force microscopy. Overall, the synthesis and characterization of these materials open up a wide range of future studies involving tellurium-based polyheterocycles.
[EN] 3-SUBSTITUTED TELLUROPHENES AND RELATED COMPOUNDS<br/>[FR] TELLUROPHÈNES SUBSTITUÉS EN 3ÈME POSITION ET COMPOSÉS ASSOCIÉS
申请人:UNIV TORONTO
公开号:WO2014067016A1
公开(公告)日:2014-05-08
Monomeric 3-substututed tellurophene compounds, as well as their use in the synthesis of oligomeric and/or polymeric compounds consisting of two or more tellurophene-2,5-diyl groups which are covalently linked to each other are disclosed, as is the use of said oligomers and polymers in devices such as diodes and solar cells, electrodes and semiconductors.
Morphology Control of Selenophene–Thiophene Block Copolymers through Side Chain Engineering
作者:Jon Hollinger、Dwight S. Seferos
DOI:10.1021/ma501231d
日期:2014.8.12
We report the synthesis of three fully π-conjugated diblock copolymerscontaining selenophene- and thiophene-based repeating units. All of these diblock copolymers undergo phase separation, and by systematically changing the compatibility of the two blocks through side chain modification, we are able to access different thin film morphologies. Introducing a bulky 2-ethylhexyl side chain increases solubility
我们报告了三个含硒基和噻吩基重复单元的完全π-共轭二嵌段共聚物的合成。所有这些二嵌段共聚物都经历了相分离,并且通过侧链改性系统性地改变了两个嵌段的相容性,我们能够获得不同的薄膜形态。引入大体积的2-乙基己基侧链可增加溶解度,同时保持硒烯嵌段的结晶度。虽然聚(3- hexylselenophene) - b -聚(3-己基噻吩)和聚(3-(2-乙基己基)硒吩b -聚(3-(2-乙基己基)噻吩)形式更加无序的原纤维结构,聚(3- -己基噻吩)-b-聚(3-(2-乙基己基)硒烯)形成长的(1-2μm)固态原纤维结构,让人联想到由非共轭嵌段共聚物形成的薄片。在每个这些示例中,我们还使用电子能量损失谱在纳米尺度上可视化富含噻吩和亚硒吩的域。通过研究新的聚合物成分并将其与固态结构相关联,我们进一步了解了杂环诱导的相分离和一般的相分离。
3-SUBSTITUTED TELLUROPHENES AND RELATED COMPOUNDS
申请人:THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
公开号:US20150295178A1
公开(公告)日:2015-10-15
Monomeric 3-substituted tellurophene compounds, as well as their use in the synthesis of oligomeric and/or polymeric compounds consisting of two or more tellurophene-2,5-diyl groups which are covalently linked to each other are disclosed, as is the use of said oligomers and polymers in devices such as diodes and solar cells, electrodes and semiconductors.
Poly(3-alkyltellurophene)s Are Solution-Processable Polyheterocycles
作者:Ashlee A. Jahnke、Brandon Djukic、Theresa M. McCormick、Ester Buchaca Domingo、Christoph Hellmann、Yunjeong Lee、Dwight S. Seferos
DOI:10.1021/ja309404j
日期:2013.1.23
The synthesis and characterization of a series of poly(3-allcyltellurophene)s are described. Polymers are prepared by both electrochemical and Kumada catalyst transfer polymerization methods. These polymers have reasonably high molecular weights (M-n = 5.4-11.3 kDa) and can be processed in a manner analogous to that of their lighter atom analogues. All examples exhibit red-shifted optical absorption, as well as solid-state organization, as evidenced by absorption spectroscopy and atomic force microscopy. Overall, the synthesis and characterization of these materials open up a wide range of future studies involving tellurium-based polyheterocycles.