Journal
ACS MACRO LETTERS
Volume 7, Issue 1, Pages 90-94Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.7b00887
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Funding
- JSPS [17H03063]
- Grants-in-Aid for Scientific Research [16H02081, 17H03063, 17K05973] Funding Source: KAKEN
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Polycondensation via Pd-catalyzed cross-dehydrogenative-coupling reaction of 2,2',3,3',5,5',6,6'-octafluorobiphenyl with thiophene analogues was studied. The synthetic protocol, in which employment of prefunctionalized starting monomers was fully avoided, allowed straightforward access to an alternating pi-conjugated polymer. The addition of K2CO3 to the catalytic system promotes the cross-coupling reaction and suppresses the undesired homocoupling reaction, producing the corresponding donor acceptor type pi-conjugated polymers with minor homocoupling defects. The reaction also proceeded using O-2 as the terminal oxidant, resulting in lower loading of the Ag oxidant. The obtained polymer was evaluated as an emitting material for an organic light-emitting diode.
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