Polymer compound for a conductive polymer and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-9657115-B2
Application number	US-201414564167-A
Country	US
Kind code	B2
Filing date	Dec 9, 2014
Priority date	Dec 20, 2013
Publication date	May 23, 2017
Grant date	May 23, 2017

Abstract

A polymer compound for a conductive polymer including one or more repeating units represented by general formula (1), which has been synthesized by ion-exchange of a lithium salt, sodium salt, potassium salt, or nitrogen compound salt of a sulfonic acid residue, and has a weight average molecular weight in the range of 1,000 to 500,000,

wherein R 1 represents a hydrogen atom or methyl group, R 2 represents a single bond, an ester group, or a linear, branched, or cyclic hydrocarbon group having 1 to 12 carbon atoms which may have either or both of an ether group and an ester group, and Z represents a phenylene group, naphthylene group, or ester group. There can be provided a polymer compound for a conductive polymer having a specific super strongly acidic sulfo group, which is soluble in an organic solvent, and suitably used for a fuel cell or dopant for a conductive material.

First claim

What is claimed is:

1. A method for manufacturing a polymer compound for a conductive polymer comprising a repeating unit represented by the following general formula (1), which comprises
performing a polymerization reaction using a monomer which has a structure of a salt comprising a sulfonic acid residue and lithium, sodium, potassium, or a nitrogen compound, and after polymerization, converting the structure of the salt comprising the sulfonic acid residue and the lithium, the sodium, the potassium, or the nitrogen compound into a sulfo group by ion-exchange using an ion exchange resin, thereby manufacturing a polymer compound which is used for a conductive polymer,
wherein the molecular weight distribution (Mw/Mn) of the polymer compound is 1.0 to 2.0, and the polymer compound contains one or more repeating units selected from the repeating units represented by the following general formula (2-2) or (2-3) as the repeating unit represented by the general formula (1),

wherein R 1 represents a hydrogen atom or a methyl group, R 2 represents a single bond, an ester group, or a linear, branched, or cyclic hydrocarbon group having 1 to 12 carbon atoms which may have either or both of an ether group and an ester group, and Z represents a phenylene group, a naphthylene group, or an ester group, and

wherein R 1 has the same meaning as defined above.

Assignees

• Shinetsu Chemical Co

Inventors

• Hatakeyama Jun
• Hasegawa Koji
• Nagasawa Takayuki
• Sagehashi Masayoshi

Classifications

• C08F112/30

  Sulfur · CPC title

• C08F112/20

  Fluorine · CPC title

• C08F8/00 Primary

  Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C) · CPC title

• H01M8/1039

  halogenated, e.g. sulfonated polyvinylidene fluorides · CPC title

• C08F12/30

  Sulfur · CPC title