The synthesis of isotactic poly(N-butenyl-carbazole) (-PBK) by using homogeneous isospecific Ziegler-Natta catalytic system is reported. The achieved polymer is crystalline and shows, to DSC and X-ray analysis, two distinct crystalline phases. -PBK FTIR spectrum and X-ray diffraction pattern are compared with those of poly(N-vinylcarbazole) (PVK). The observed differences are tentatively associated with higher flexibility of the -PBK chains due to the alkylene group connecting the carbazole group to the main chain. -PBK optical properties are also compared with those of PVK and isotactic poly(N-pentenyl-carbazole) (-PPK), a higher homologue of -PBK recently used as emitting layer in organic light emitting diodes (OLEDs) showing white light emission. The close similarity of the fluorescence spectra of -PBK and -PPK is a promising basis for optical applications of this polymer.

Highly isotactic poly(N-butenyl-carbazole): Synthesis, characterization, and optical properties

BOTTA, ANTONIO;VENDITTO, Vincenzo;RUBINO, Alfredo;PRAGLIOLA, Stefania
2016-01-01

Abstract

The synthesis of isotactic poly(N-butenyl-carbazole) (-PBK) by using homogeneous isospecific Ziegler-Natta catalytic system is reported. The achieved polymer is crystalline and shows, to DSC and X-ray analysis, two distinct crystalline phases. -PBK FTIR spectrum and X-ray diffraction pattern are compared with those of poly(N-vinylcarbazole) (PVK). The observed differences are tentatively associated with higher flexibility of the -PBK chains due to the alkylene group connecting the carbazole group to the main chain. -PBK optical properties are also compared with those of PVK and isotactic poly(N-pentenyl-carbazole) (-PPK), a higher homologue of -PBK recently used as emitting layer in organic light emitting diodes (OLEDs) showing white light emission. The close similarity of the fluorescence spectra of -PBK and -PPK is a promising basis for optical applications of this polymer.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4664365
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 14
  • ???jsp.display-item.citation.isi??? 14
social impact