Sumitomo Chemical Company, Limited

Shota Moriwaki

Hidenori Hanaoka

Hidenobu Kakimoto

Tomoyasu Yoshida

Tomoya Nakatani

Osamu Goto

Tomoko Takasuka

A polymer compound comprising a constitutional unit represented by the formula (1):  

Fluoranthene polymer compound

A polymer compound comprising a repeating unit represented by the formula (I): [wherein Xrepresents an oxygen atom, a sulfur atom or N(R)&#x2014;, Rto Rand Rrepresent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkenyl group, an arylalkynyl group, a mono-valent heterocyclic group or the like.].

Polymer compound and organic transistor using the same

Disclosed is a block copolymer characterized by containing a block (A) containing two or more different repeating units respectively composed of a specific divalent heterocyclic group, and a repeating unit composed of an arylene group, and a block (B) containing a repeating unit composed of an arylene group and a repeating unit composed of a divalent aromatic amine residue. Also disclosed are a composition containing a solvent, a light-emitting material other than the block copolymer, a hole-transporting material other than the block copolymer, an electron-transporting material other than the block copolymer or a combination of two or more of them, in addition to the block copolymer; a light-emitting thin film characterized by containing the block copolymer; and a polymer light-emitting device characterized by having an anode, a cathode and an organic layer containing the block copolymer and arranged between the anode and the cathode.

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Ibaraki, Japan

Shota Moriwaki