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Article

Poly(3-hexylthiophene) Grafting and Molecular Dilution: Study of a Class of Conjugated Graft Copolymers

1
Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 9 Strzody Street, 44-100 Gliwice, Poland
2
Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Silesian University of Technology, 6 Krzywoustego Street, 44-100 Gliwice, Poland
3
Department of Optoelectronics, Silesian University of Technology, 2 Krzywoustego Street, 44-100 Gliwice, Poland
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(2), 205; https://doi.org/10.3390/polym11020205
Received: 30 November 2018 / Revised: 20 January 2019 / Accepted: 22 January 2019 / Published: 24 January 2019
(This article belongs to the Special Issue Electrochromic Polymers)
A type of graft copolymer based on polysiloxane and regioregular poly(3-hexylthiophene) (P3HT) has been synthesised and its properties have been studied alongside those of its parent conjugated polymer—regioregular P3HT. Electrochemical analysis has revealed more significant changes in conformation of the copolymer film than was observed for P3HT. UV-Vis-NIR spectroelectrochemical investigation provided evidence of improved doping reversibility of the copolymer, despite its marginally increased band gap, as also confirmed by electroconductometric analysis. Evidence has been shown, indicating that polaron mobilities in both P3HT and the copolymer are higher than those of bipolaronic charge carriers, even though both systems exhibit standard doping/dedoping patterns. The grafted copolymer was tested in bulk heterojunction solar cells. Preliminary studies show a great potential of these polymers for application in photovoltaics. Power conversion efficiency of up to 2.46% was achieved despite the dilution of the P3HT chains in the copolymer. View Full-Text
Keywords: poly(3-hexylthiophene); graft copolymers; molecular dilution; functionalized conducting polymers poly(3-hexylthiophene); graft copolymers; molecular dilution; functionalized conducting polymers
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MDPI and ACS Style

Jarosz, T.; Kepska, K.; Ledwon, P.; Procek, M.; Domagala, W.; Stolarczyk, A. Poly(3-hexylthiophene) Grafting and Molecular Dilution: Study of a Class of Conjugated Graft Copolymers. Polymers 2019, 11, 205. https://doi.org/10.3390/polym11020205

AMA Style

Jarosz T, Kepska K, Ledwon P, Procek M, Domagala W, Stolarczyk A. Poly(3-hexylthiophene) Grafting and Molecular Dilution: Study of a Class of Conjugated Graft Copolymers. Polymers. 2019; 11(2):205. https://doi.org/10.3390/polym11020205

Chicago/Turabian Style

Jarosz, Tomasz, Kinga Kepska, Przemyslaw Ledwon, Marcin Procek, Wojciech Domagala, and Agnieszka Stolarczyk. 2019. "Poly(3-hexylthiophene) Grafting and Molecular Dilution: Study of a Class of Conjugated Graft Copolymers" Polymers 11, no. 2: 205. https://doi.org/10.3390/polym11020205

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