TY - JOUR
T1 - Synthesis of novel conjugated polymers based on benzo[1,2-
T2 - D:4,5- d ′]-bis([1,2,3]triazole) for applications in organic field-effect transistors
AU - Yeh, Yao Ming
AU - Huang, Chiao Hui
AU - Peng, Shih Hao
AU - Chang, Chia-Chih
AU - Hsu, Chain-Shu
N1 - Publisher Copyright:
© 2019 The Royal Society of Chemistry.
PY - 2019/3/28
Y1 - 2019/3/28
N2 - Novel donor-acceptor (D-A) conjugated polymers based on 4,8-bis(5-bromothiophen-2-yl)-2,6-bis(2-octyldodecyl)-2H-benzo[1,2-d:4,5-d′]- bis([1,2,3]triazole)-6-ium-5-ide (BTBBTa) combined with three different electron-donating monomers bithiophene (BT), thieno[3,2-b]thiophene (TT), (E)-2-[2-(thiophen-2yl)vinyl]thiophene (TVT) were synthesized. By replacing the sulfur atoms on benzobisthiadiazole with nitrogen atoms, benzobistriazole (BBTa) can possess alkyl chains on the central nitrogen atoms rather than on the thiophene rings along the polymer chain, which can reduce the steric hindrance between neighboring monomers and increase the planarity of polymers. The optical, thermal and electrochemical properties of the polymers were characterized, respectively. DFT calculations were used to calculate the optimized geometries of polymer backbones. The thin film microstructures of the polymers were characterized by using GIWAXS and AFM. In these novel polymers, PBTBBTa-BT displayed the highest hole mobility of 0.21 cm2 V-1 s-1.
AB - Novel donor-acceptor (D-A) conjugated polymers based on 4,8-bis(5-bromothiophen-2-yl)-2,6-bis(2-octyldodecyl)-2H-benzo[1,2-d:4,5-d′]- bis([1,2,3]triazole)-6-ium-5-ide (BTBBTa) combined with three different electron-donating monomers bithiophene (BT), thieno[3,2-b]thiophene (TT), (E)-2-[2-(thiophen-2yl)vinyl]thiophene (TVT) were synthesized. By replacing the sulfur atoms on benzobisthiadiazole with nitrogen atoms, benzobistriazole (BBTa) can possess alkyl chains on the central nitrogen atoms rather than on the thiophene rings along the polymer chain, which can reduce the steric hindrance between neighboring monomers and increase the planarity of polymers. The optical, thermal and electrochemical properties of the polymers were characterized, respectively. DFT calculations were used to calculate the optimized geometries of polymer backbones. The thin film microstructures of the polymers were characterized by using GIWAXS and AFM. In these novel polymers, PBTBBTa-BT displayed the highest hole mobility of 0.21 cm2 V-1 s-1.
UR - http://www.scopus.com/inward/record.url?scp=85063228522&partnerID=8YFLogxK
U2 - 10.1039/c8py01526k
DO - 10.1039/c8py01526k
M3 - Article
AN - SCOPUS:85063228522
SN - 1759-9954
VL - 10
SP - 1471
EP - 1479
JO - Polymer Chemistry
JF - Polymer Chemistry
IS - 12
ER -