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- W2388893043 abstract "Poly[(pyrrole-2,5-diyl)-p-(N,N-dimethylamino)azobenzylidene](PPDMAB) is prepared from 4-formyl-4′-dimethylaminoazobenzene(FDMAA) and pyrrole by condensation polymerization.Then PPDMAB is oxidized to poly[(pyrrole-2,5-diyl)-p-(N,N-dimethylamino) azobenzylidenequinomethane-2,5-diyl] (PPDMABQ).The IR and UV-Vis absorption spectra of PPDMAB indicate that there is part quinoid structure in it.The enlarged absorption peak at 1650 cm~(-1) in IR spectrum and the bigger absorption peaks at 530 nm in UV-Vis spectra imply that the quinoid structure is virtually formed in PPDMABQ.The spectrum of X-ray diffraction of PPDMABQ shows that there are some small crystallized regions.The thermal stability by TGA is studied which indicates that PPDMABQ decomposes above 260 ℃.Using two models,the bandgaps of PPDMABQ are calculated as 1.42 eV and 1.76 eV,respectively." @default.
- W2388893043 created "2016-06-24" @default.
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- W2388893043 date "2004-01-01" @default.
- W2388893043 modified "2023-09-26" @default.
- W2388893043 title "Synthesis and Study of a Kind of Poly(pyrrolyl methines) with Azo Side Groups" @default.
- W2388893043 hasPublicationYear "2004" @default.
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