Studies on 3-(2-ethylhexyl)thiophene polymers

TLDR: In this article, the thermal stability of the polymers was improved due to the addition of thiophene rings with (2-ethylhexyl)thiophene, even though the absorption wavelength was red-shifted, there was no characteristic change in photoemission for the latter polymer.

Abstract: The regio-regularity and properties of the poly[3-(2-ethylhexyl)thiophene] were studied, and compared with the poly[3′-(2-ethylhexyl)-2,2′,5′,2′′-terthiophene]. The thermal stability of the polymers was improved due to the addition of thiophene rings with (2-ethylhexyl)thiophene. Due to the additional thiophenes at the 2,5 position of ethylhexylthiophene, even though the absorption wavelength was red-shifted, there is no characteristic change in photoemission for the latter polymer. Addition of thiophene rings to the 3-(2-ethylhexyl)thiophene improves the thermal properties without loosing the 3-(2-ethylhexyl)thiophene characteristics.