Über polyarylenalkenylene und polyheteroarylenalkenylene, 13. Synthesen und charakterisierung von poly (dithieno[3,2-b: 2′, 2′,3′-d]thiophen-2, 6-diylvinylenarylenvinylen)en und einigen modellverbindungen

✍ Scribed by Koßmehl, Gerhard ;Beimling, Peter ;Manecke, George

• Publisher: Wiley (John Wiley & Sons)
• Year: 1982
• Weight: 656 KB
• Volume: 183
• Category: Article
• ISSN: 0025-116X
• DOI: 10.1002/macp.1982.021831113

✦ Synopsis

Abstract

From Witting‐reactions of dithieno[3,2‐b: 2′, 3′‐d]thiophene‐2, 6‐dicarboxaldephyde (1) with “mono‐and bis‐Wittig‐salts” of the benzene and thiophene series poly(dithieno[3,2‐b: 2′,3′‐d]‐thiophene‐2,6‐diylvinylenearylenevinylene)s 3a—c and some model compounds 5a—c were obtained. Wittig‐reactions of dithieno[3,2‐b: 2′,3‐d]thiophene‐2‐carboxaldehyde (6) with “mono‐and bis‐Wittig‐salts” gave model compounds 7a—c and 8a, c. The structures of all compounds were confirmed by elements analyses, IR‐and electronic spectra, those of the model compounds additionally by mass spectra, and in case of sufficient solubility by ^1^ H NMR spectra. The electrical conductivities of all compounds and the thermooxidactive degradation of the polymers 3a, c were investigated.