3,3′-Bicarbazolyl-Containing Oxirane and its Reaction Products as New Glass-Forming Electroactive Materials
摘要:
Low-molar-mass oxiranyl-substituted 3,3'-bicarbazolyl derivatives were synthesized by the reaction of 3,3'-bicarbazolyl-containing oxirane with dimercapto compounds as linking agents. The cationic ring opening polymerization of oxirane monomers was performed using ytterbium (III) trifluoromethanesulfonate [Yb(OTf)(3)] as a cationic initiator to obtain polyether. The full characterization of the compounds by mass spectrometry, IR, H-1 NMR, and C-13 NMR is presented. All the compounds represent amorphous materials with glass transition temperatures ranging from 28 degrees C to 112 C and with 5%-weight-loss temperatures exceeding 308 degrees C. The electron photoemission spectra of the materials were recorded, and the ionization potentials of ca. 5.5 eV were established. Time-of-flight hole drift mobilities of the a morph oils film of some synthesized compounds exceed 10(-5) cm(2)/Vs at high electric fields.
3,3′-Bicarbazolyl-Containing Oxirane and its Reaction Products as New Glass-Forming Electroactive Materials
摘要:
Low-molar-mass oxiranyl-substituted 3,3'-bicarbazolyl derivatives were synthesized by the reaction of 3,3'-bicarbazolyl-containing oxirane with dimercapto compounds as linking agents. The cationic ring opening polymerization of oxirane monomers was performed using ytterbium (III) trifluoromethanesulfonate [Yb(OTf)(3)] as a cationic initiator to obtain polyether. The full characterization of the compounds by mass spectrometry, IR, H-1 NMR, and C-13 NMR is presented. All the compounds represent amorphous materials with glass transition temperatures ranging from 28 degrees C to 112 C and with 5%-weight-loss temperatures exceeding 308 degrees C. The electron photoemission spectra of the materials were recorded, and the ionization potentials of ca. 5.5 eV were established. Time-of-flight hole drift mobilities of the a morph oils film of some synthesized compounds exceed 10(-5) cm(2)/Vs at high electric fields.
3,3′-Bicarbazolyl-Containing Oxirane and its Reaction Products as New Glass-Forming Electroactive Materials
作者:V. Vaitkeviciene、J. V. Grazulevicius、V. Jankauskas
DOI:10.1080/15421400802462938
日期:2008.12.3
Low-molar-mass oxiranyl-substituted 3,3'-bicarbazolyl derivatives were synthesized by the reaction of 3,3'-bicarbazolyl-containing oxirane with dimercapto compounds as linking agents. The cationic ring opening polymerization of oxirane monomers was performed using ytterbium (III) trifluoromethanesulfonate [Yb(OTf)(3)] as a cationic initiator to obtain polyether. The full characterization of the compounds by mass spectrometry, IR, H-1 NMR, and C-13 NMR is presented. All the compounds represent amorphous materials with glass transition temperatures ranging from 28 degrees C to 112 C and with 5%-weight-loss temperatures exceeding 308 degrees C. The electron photoemission spectra of the materials were recorded, and the ionization potentials of ca. 5.5 eV were established. Time-of-flight hole drift mobilities of the a morph oils film of some synthesized compounds exceed 10(-5) cm(2)/Vs at high electric fields.