End Group Modification of Regioregular Polythiophene through Postpolymerization Functionalization
نویسندگان
چکیده
منابع مشابه
End Group Modification of Regioregular Polythiophene through Postpolymerization Functionalization
HT-poly(3-hexylthiophenes) (HT-PHT) with H/Br end group composition were prepared via a modified McCullough method using anhydrous ZnCl2 for the transmetalation step. These bromineterminated HT-PHT can be end group modified at the ω end through a cross-coupling reaction with thienylzinc compounds bearing a THP-protected hydroxy or STABASE-protected amino groups. After deprotection, HT-PHTs with...
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Introduction Conjugated polymers have received intense interest due to their practical and potential applications for electronic and photonic materials and devices. Poly-3-alkylthiophenes (PATs) represent a large portion of this field because of their good solubility, environmental stability and processability. Control over the regiochemistry and cross-coupling of 3-substituted thiophene monome...
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Using a variety of optical probes techniques we studied the photoexcitation dynamics in thin films of poly-3-hexyl thiophene with regioregular order that forms lamellae structures with increased interchain interaction, as well as regiorandom order that keeps a chainlike morphology. In regiorandom films we found that intrachain excitons with correlated induced absorption and stimulated emission ...
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The efficient synthesis of regioregular poly(3-hexylthiophene-2,5-diyl)s (rr-P3HTs) capped with chalcogens using a simple quenching method is reported. Thiol (SH) end groups are selectively installed at the terminating end (ω-end) or at both the initiating (α-) and ω-ends using sulphur powder or triisopropylsilanethiol (TIPS-SH), respectively.
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ژورنال
عنوان ژورنال: Macromolecules
سال: 2002
ISSN: 0024-9297,1520-5835
DOI: 10.1021/ma021362p