Vuthichai ErvithayasupornJunichi AbeXin WangToshinori MatsushimaHideyuki MurataYusuke KawakamiJapan Advanced Institute of Science and TechnologyMahidol University2018-09-242018-09-242010-11-27Tetrahedron. Vol.66, No.48 (2010), 9348-9355004040202-s2.0-78049483557https://repository.li.mahidol.ac.th/handle/20.500.14594/28592Two new classes of mono- and oligo(p-phenylene ethynylene)s grafted with polyhedral oligomeric silsesquioxanes (POSS) were synthesized via 'click' chemistry and palladium-catalyzed Sonogashira cross-coupling. These materials with cubic silsesquioxanes are very robust with excellent thermal stability in air (T5%loss>330 °C) and exhibited Tg>80 °C. All the compounds showed high photoluminescence with a range of blue emission and quantum yield up to 80% in the solution. Extended π conjugation molecules of oligo-pPEs POSS maintain relatively high PL quantum efficiencies in the solid state, compared to mono-pPEs POSS. A preliminary report is made of some of the materials as multilayer OLED components with active dopants PVK and PBD. © 2010 Elsevier Ltd. All rights reserved.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyChemistryPharmacology, Toxicology and PharmaceuticsArticleSCOPUS10.1016/j.tet.2010.10.009