Synthesis of Solution-Processable Poly(cyclopenta[c]selenylvinylene) and Its Charge Transport Properties: Comparative Study with the Thiophene Analogue

被引:16
作者
Bedi, Anjan [1 ]
Senanayak, Satyaprasad P. [2 ]
Narayan, K. S. [2 ]
Zade, Sanjio S. [1 ]
机构
[1] Indian Inst Sci Educ & Res, Dept Chem Sci, Kolkata, India
[2] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India
关键词
BAND-GAP; POLY(2,5-THIENYLENE VINYLENE); POLYMERS; TRANSISTOR;
D O I
10.1021/ma4008219
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
We report here the synthesis and characterization of 5,5-bis(dodecyloxymethyl)-5,6-dihydro-4H-cyclopenta[c]selenophene (DCPS) and its characterization by single crystal X-ray diffraction technique. In continuation to this, two new solution-processable copolymers PDCPSV and PDCPTV, comprising of DCPS and 5,5-bis(dodecyloxymethyl)-5,6-dihydro-4H-cyclopenta[c]thiophene (DCPT), respectively, in combination with vinylene unit were synthesized, characterized and compared on the basis of their physical, optical and electronic properties. We have successfully introduced vinylene linkage between two consecutive DCPS or DCPT units in the polymer main chain that resulted in low band gap and oxidatively stable polymers. The 3,4-cyclopentane substitution on thiophene and selenophene affords the planarity to the resulting polymers and the question of regioregularity does not arise in the polymer chain in contrast to the 3-alkyl substitution. PDCPSV showed a p-type mobility of 5.6 x 10(-3) cm(2) V-1 s(-1), whereas PDCPTV showed 3.8 x 10(-3) cm(2) V-1 s(-1). The polymers were further characterized by GPC, TGA, DSC, thin-film XRD, and cyclic voltammetry (CV).
引用
收藏
页码:5943 / 5950
页数:8
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