Nissan Chemical Industries Limited

Nissan Chemical Corporation

Riken Corporation

Kyushu University

Oita University

Taichi Nakazawa

Naoki Nakaie

Yoshihiro Kudo

Shoichi Kondo

Takuzo Aida

Yasuhiro Ishida

Masataka Ohtani

Shingo Tamesue

Takamasa Kikuchi

Toshiyuki Endo

Kazunari Sasaki

Masamichi Nishihara

Shiyan Feng

Liana Christiani

Takahiro Kaseyama

Yuki Takayama

Yuki Nohara

Shoji Moriyama

Seiya Terai

Byungchan Hwang

Taro Kinumoto

Mitsuyoshi Kawashima

Provided is a material which can be used in a catalyst layer for a fuel cell and exhibits proton conductive properties. The present invention is directed to a carbon-based solid acid comprising a carbon material having a sulfonic acid group through a linker.

Carbon-based solid acid

When a metal catalyst is used as a catalyst in a catalyst layer of a polymer electrolyte fuel cell, improvement in catalytic activity and improvement in durability of the metal catalyst are intended. The catalyst composition of the present invention comprises a metal catalyst, a carbon material having a nitrogen-containing group on which the metal catalyst is carried, and an ionomer.

Catalyst composition and carbon material having nitrogen-containing group

The present invention provides a composition containing an electron-donating polymer (D) and an electron-withdrawing polymer (A), wherein the electron-donating polymer (D) has a constitutional unit represented by the following formula (1a), Yin the following formula (1a) is a divalent group represented by the following formula (3a), and the electron-withdrawing polymer (A) has a constitutional unit represented by the following formula (4a): wherein the symbols in the formulas are as described in the DESCRIPTION.

Polymer composition

This is to provide a non-halogen containing compound excellent in proton conductivity and capable of suitably being used for a polymer electrolytic fuel cell The compound of the present invention has a structure represented by the following general formula (I).  (In the above-mentioned general formula (I), 'l' and 'n' are molar fractions when l+n=1.0, and 0&#x2264;l&#x3c;1.0 and 0&#x3c;n&#x2264;1.0, A represents a structure represented by the following general formula (II) or (III), B represents a structure represented by the following general formula (VII), the respective structural units are random copolymerized, and at least one benzene ring in the formula (I) has at least one sulfo group.)  (In the above-mentioned general formula (II) or (III), Rto Rare each independently selected from hydrogen and an alkyl group having 1 to 3 carbon atoms, le and Rform together with the carbon atom, they are attached to, an aromatic ring or a fused aromatic ring and Rand Rform together with the carbon atom, they are attached to, an aromatic ring or a fused aromatic ring, or R, Rand Rare hydrogens and Ris a single bond and bonded to the carbon of &#x201c;c&#x201d;, 

Polyphenylene compound

A composition containing electron-donating polymer (D) having a structure represented by the following formula (1), and electron-withdrawing polymer (A) having a structure represented by the following formula (2): wherein definition of the symbols are as described in the DESCRIPTION is provided.

Provided are: a charge-transporting varnish that contains a charge-transporting substance comprising an oligoaniline derivative represented by formula (1), a charge transporting substance that does not contain fluorine atoms, and an organic solvent; and an organic electroluminescent element including a thin film obtained from the varnish. (In the formula: Rrepresents a hydrogen atom or an alkyl group that may be substituted; Rto Reach independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, or an alkyl group, alkenyl group, alkynyl group, aryl group or heteroaryl group that may be substituted; A represents a prescribed fluorine atom-containing substituent; and k represents an integer from 1 to 20.)

Charge-transporting varnish, and organic electroluminescent element

Aniline derivatives such as those represented by the formula shown, for example, have good solubility with respect to organic solvents, and are able to provide an organic electroluminescent element having excellent luminance characteristics when a thin film containing said aniline derivatives is used as a charge transporting substance in a hole injection layer. (In the formula, DPA represents a diphenylamino group.)

Aniline derivatives and uses thereof

An organic/inorganic composite hydrogel can be prepared only through mixing at a room temperature and that has high modulus of elasticity and a self-supporting property that allows a shape to be maintained in water, and a method produces the hydrogel. A hydrogel forming composition that is capable of forming a hydrogel having a self-supporting property, includes: a water-soluble organic polymer having an organic acid structure, an organic acid salt structure, or an organic acid anion structure; a silicate salt; a dispersant for the silicate salt; and a compound having or generating divalent or higher valent positive charge; a hydrogel formed of the composition, and a method for producing the hydrogel.

Hydrogel forming composition and hydrogel formed thereof

Provided is a charge-transporting varnish which comprises an amide compound containing fluorine atoms and represented by formula (1) and a charge-transporting substance. [In the formula, Arrepresents a group represented by any of formulae (1-1) to (1-9) and Arand Areach represent a given fluorinated aryl or aralkyl group.] 

Charge-transporting varnish and organic electroluminescent element

Provided is a fluorine atom-containing compound represented by formula (1) below (In the formula, Z represents a predetermined divalent group, each Ar independently represents a predetermined aromatic ring-containing group, and each Arindependently represents a predetermined fluorine atom-containing aryl group).

Fluorine atom-containing compound and use thereof

The invention provides a charge-transporting varnish, containing a charge-transporting substance formed of an indolocarbazole represented by the following formula (1), a dopant substance, and an organic solvent. 

Charge-transporting varnish, charge-transporting thin film and method for manufacturing same, and organic electroluminescent element and method for manufacturing same

Aniline derivatives such as are represented by, e.g., the formula have excellent solubility in organic solvents and make it possible to obtain an organic EL element having exceptional brightness characteristics when a thin film containing these derivatives as a charge transport material is applied to a hole injection layer. 

Aniline derivative and use thereof

Provided is an aniline derivative represented by formula (1). (In formula (1), Rrepresents an alkyl group, an alkenyl group, an alkynyl group, an aryl group having 6-20 carbon atoms, a heteroaryl group, or a group represented by formula (2), and R-Rindependently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, an aldehyde group, a hydroxy group, a thiol group, a carboxylic acid group, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, etc.)

Aniline derivative, charge-transporting varnish and organic electroluminescent device

A charge transport material containing a charge transport substance that is composed of a compound represented by formula (1) and another charge transport substance that is composed of a charge transport compound having a molecular weight of 200-9,000 exhibits good solubility in an organic solvent. A charge transport varnish, from which a charge transport thin film having excellent charge transport properties, flatness and uniformity is formed with good reproducibility, is able to be prepared by dissolving the above-described charge transport material in an organic solvent. 

Charge transport material

Aniline derivatives such as those represented by the formulas shown, for example, have good solubility in organic solvents, and are able to provide organic electroluminescent elements having excellent longevity when thin films containing said aniline derivatives as charge transporting substances are used for hole injection layers. 

Growing community of inventors

Funabashi, Japan

Taichi Nakazawa