Development of a Versatile Methodology for the Synthesis of Poly(2,5-benzophenone) Containing Coil−Rod−Coil Triblock Copolymers
摘要:
A short, simple, versatile methodology was developed for the synthesis of poly(2,5-benzophenone) containing coil-rod-coil triblock copolymers. After a model study, poly(2,5-benzophenone) macroinitiators were synthesized via end-capping poly(2,5-dichlorobenzophenone) synthesized by Ni(0)-catalyzed polymerization and functionalization of the chain ends utilizing phase transfer chlorination. Varying molecular weights of polystyrene-b-poly(2,5-benzophenone)-b-polystyrene were synthesized using the macroinitiators in the atom transfer radical polymerization of styrene. The materials were characterized by gel permeation chromatography, nuclear magnetic resonance, differential scanning calorimetry, and transmission electron microscopy. Applications were explored through dynamic mechanical analysis and the construction of a distributed junction photovoltaic device.
ASYMMETRIC STYRYL DERIVATIVES AND ORGANIC LIGHT EMITTING DIODE PREPARED USING THE SAME
申请人:Kim Tae-Hyung
公开号:US20100081846A1
公开(公告)日:2010-04-01
Disclosed are asymmetric styryl derivatives and an organic light emitting diode prepared using the same. More particularly, there are provided asymmetric styryl derivatives that can provide a blue organic light emitting diode with superior thermal stability, as well as improved luminous efficiency, improved brightness, and extended lifetime, by synthesizing a novel thermally stable compound with a styryl structure represented by Formula 1, and using the compound as a dopant in an organic light emitting layer (EML) of a multilayered organic light emitting diode, and an organic light emitting diode prepared by the same.
Nitrogen-containing aromatic compounds and processes for the production of the same, polymers and proton conductive membranes of these compounds
申请人:JSR Corporation
公开号:EP2206547A1
公开(公告)日:2010-07-14
A nitrogen-containing aromatic compound is represented by Formula (1). A polymer is obtained by polymerizing the compound.
wherein X is an atom or a group selected from halogen atoms other than fluorine and -OSO2Rb (wherein Rb is an alkyl group, a fluorine-substituted alkyl group or an aryl group) ; Y is at least one structure selected from the group consisting of -CO-, -SO2-, -SO-, -CONH-, -COO-, -(CF2)1- (wherein 1 is an integer of 1 to 10) and -C(CF3)2-; Z is at least one structure selected from the group consisting of a direct bond, -O- and -S-; R20 is a nitrogen-containing heterocyclic group; q is an integer of 1 to 5; and p is an integer of 0 to 4.