- Synthesis and characterization of 1,2,4-oxadiazole-based deep-blue and blue color emitting polymers
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Two donor-acceptor-donor monomers such as 3,5-bis(4-bromophenyl)-1,2,4- oxadiazole (BOB) and 3,5-bis(5-bromothiophen-2-yl)-1,2,4-oxadiazole (TOT) incorporating electron transporting and hole blocking 1,2,4-oxadiazloe moiety were copolymerized with light emitting fluorene derivative via Suzuki polycondensation toafford two new polymers, PFBOB and PFTOT, respectively. The optical studies for polymers PFBOB andPFTOT revealed that the band gaps are 3.10 eV and 2.72 eV, respectively, and polymer PFBOB exhibited a deep-blue emission while polymer PFTOT showed blue emission in chloroform and as thin film. The photoluminescence quantum efficiencies (Φf) of polymers PFBOB and PFTOT in chloroform calculated against highly blue emitting 9,10-diphenylanthracene (DPA, Φf = 0.90) were 1.00 and 0.44, respectively.
- Agneeswari, Rajalingam,Tamilavan, Vellaiappillai,Hyun, Myung Ho
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p. 513 - 517
(2014/03/21)
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- Synthesis of polymers containing 1,2,4-oxadiazole as an electron-acceptor moiety in their main chain and their solar cell applications
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To explore the aptitude of 1,2,4-oxadiazole-based electron-acceptor unit in polymer solar cell applications, we prepared four new polymers (P1-P4) containing 1,2,4-oxadiazole moiety in their main chain and applied them to solar cell applications. Thermal,
- Agneeswari, Rajalingam,Tamilavan, Vellaiappillai,Song, Myungkwan,Kang, Jae-Wook,Jin, Sung-Ho,Hyun, Myung Ho
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p. 2131 - 2141
(2013/05/21)
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- One-pot synthesis of 3,5-disubstituted 1,2,4-oxadiazoles directly from nitrile and hydroxylamine hydrochloride under solvent-free conditions using potassium fluoride as catalyst and solid support
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A one-pot synthesis of 3,5-disubstituted 1,2,4-oxadiazoles with two identical substituents directly from the reaction of nitriles and hydroxylamine hydrochloride in the presence of potassium fluoride as catalyst and solid support under solvent-free condit
- Rostamizadeh, Shahnaz,Ghaieni, Hamid Reza,Aryan, Reza,Amani, Ali-Mohammad
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scheme or table
p. 3084 - 3092
(2010/12/19)
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- THERMAL REACTIONS OF ARYLAMIDOXIMES
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The effect of heat on arylamidoximes, 1a-g, has been examined.When acetic acid was used as solvent, amidoximes, 1a-g, provided three products, viz., 3,5-bis-aryl-1,2,4-oxadiazoles, 2a-g, 3-aryl-5-methyl-1,2,4-oxadiazoles, 3a-g, and a small quantity of an
- Leite, Lucia F. C. da Costa,Srivastava, Rajendra M.,Cavalcanti, Alexandre P.
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p. 203 - 210
(2007/10/02)
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