Polymer compound for a conductive polymer and method for producing same

Patent metadata

Field	Value
Publication number	US-2016017068-A1
Application number	US-201514752425-A
Country	US
Kind code	A1
Filing date	Jun 26, 2015
Priority date	Jul 18, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

The present invention provides a polymer compound for a conductive polymer, containing one or more repeating units (a) represented by the following general formula (1), the polymer compound for a conductive polymer being synthesized by ion-exchange of a lithium salt, a sodium salt, a potassium salt, or a nitrogen compound salt of a sulfonic acid residue, and having a weight average molecular weight in the range of 1,000 to 500,000.

There can be provided a polymer compound for a conductive polymer having a specific superacidic sulfo group which is soluble in an organic solvent, and suitably used for a fuel cell or a dopant for a conductive material.

First claim

What is claimed is:

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

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 and optionally having either or both of an ether group and an ester group; R 3 represents a linear or branched alkylene group having 1 to 4 carbon atoms where one or two hydrogen atoms in R 3 may be substituted by a fluorine atom(s); Z represents a phenylene group, a naphthylene group, or an ester group, and when Z is a phenylene group, R 2 does not include an ether group; and “a” is a number satisfying 0<a≦1.0.

2 . The polymer compound for a conductive polymer according to claim 1 , further comprising a repeating unit (b) represented by the following general formula (2),

wherein “b” is a number satisfying 0<b<1.0.

3 . The polymer compound for a conductive polymer according to claim 1 , wherein the repeating unit (a) represented by the general formula (1) includes one or more kinds selected from repeating units (a1) to (a4) respectively represented by the following general formulae (3-1) to (3-4),

wherein R 1 and R 3 have the same meanings as defined above; and a1, a2, a3, and a4 are each a number satisfying 0≦a1≦1.0, 0≦a2≦1.0, 0≦a3≦1.0, 0≦a4≦1.0, and 0<a1+a2+a3+a4≦1.0.

4 . The polymer compound for a conductive polymer according to claim 2 , wherein the repeating unit (a) represented by the general formula (1) includes one or more kinds selected from repeating units (a1) to (a4) respectively represented by the following general formulae (3-1) to (3-4),

wherein R 1 and R 3 have the same meanings as defined above; and a1, a2, a3, and a4 are each a number satisfying 0≦a1≦1.0, 0≦a2≦1.0, 0≦a3≦1.0, 0≦a4≦1.0, and 0<a1+a2+a3+a4≦1.0.

5 . The polymer compound for a conductive polymer according to claim 1 , wherein the lithium salt, the sodium salt, the potassium salt, or the nitrogen compound salt of the sulfonic acid residue is composed of a repeating unit represented by the following general formula (4),

wherein R 1 , R 2 , R 3 , Z, and “a” have the same meanings as defined above; and X represents lithium, sodium, potassium, or a nitrogen compound represented by the following general formula (5),

wherein R 101d , R 101e , R 101f , and R 101g each represent a hydrogen atom, a linear, branched, or cyclic alkyl group, alkenyl group, oxoalkyl group, or oxoalkenyl group having 1 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group or an aryloxoalkyl group each having 7 to 12 carbon atoms where a part or all of hydrogen atoms in these groups may be substituted by an alkoxy group (s); R 101d and R 101e , or R 101d , R 101e , and R 101f may form a ring, and when the ring is formed, R 101d and R 101e , or R 101d , R 101e , and R 101f represent an alkylene group having 3 to 10 carbon atoms or a heteroaromatic ring having therein the nitrogen atom in the formula.

6 . The polymer compound for a conductive polymer according to claim 2 , wherein the lithium salt, the sodium salt, the potassium salt, or the nitrogen compound salt of the sulfonic acid residue is composed of a repeating unit represented by the following general formula (4),

wherein R 1 , R 2 , R 3 , Z, and “a” have the same meanings as defined above; and X represents lithium, sodium, potassium, or a nitrogen compound represented by the following general formula (5),

wherein R 101d , R 101e , R 101f , and R 101g each represent a hydrogen atom, a linear, branched, or cyclic alkyl group, alkenyl group, oxoalkyl group, or oxoalkenyl group having 1 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group or an aryloxoalkyl group each having 7 to 12 carbon atoms where a part or all of hydrogen atoms in these groups may be substituted by an alkoxy group(s); R 101d and R 101e , or R 101d , R 101e , and R 101f may form a ring, and when the ring is formed, R 101d and R 101e , or R 101d , R 101e , and R 101f represent an alkylene group having 3 to 10 carbon atoms or a heteroaromatic ring having therein the nitrogen atom in the formula.

7 . The polymer compound for a conductive polymer according to claim 3 , wherein the lithium salt, the sodium salt, the potassium salt, or the nitrogen compound salt of the sulfonic acid residue is composed of a repeating unit represented by the following general formula (4),

wherein R 1 , R 2 , R 3 , Z, and “a” have the same meanings as defined above; and X represents lithium, sodium, potassium, or a nitrogen compound represented by the following general formula (5),

wherein R 101d , R 101e , R 101f , and R 101g each represent a hydrogen atom, a linear, branched, or cyclic alkyl group, alkenyl group, oxoalkyl group, or oxoalkenyl group having 1 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group or an aryloxoalkyl group each having 7 to 12 carbon atoms where a part or all of hydrogen atoms in these groups may be substituted by an alkoxy group (s); R 101d and R 101e , or R 101d , R 101e , and R 101f may form a ring, and when the ring is formed, R 101d and R 101e , or R 101d , R 101e , and R 101f represent an alkylene group having 3 to 10 carbon atoms or a heteroaromatic ring having therein the nitrogen atom in the formula.

8 . The polymer compound for a conductive polymer according to claim 4 , wherein the lithium salt, the sodium salt, the potassium salt, or the nitrogen compound salt of the sulfonic acid residue is composed of a repeating unit represented by the following general formula (4),

wherein R 1 , R 2 , R 3 , Z, and “a” have the same meanings as defined above; and X represents lithium, sodium, potassium, or a nitrogen compound represented by the following general formula (5),

wherein R 101d , R 101e , R 101f , and R 101g each represent a hydrogen atom, a linear, branched, or cyclic alkyl group, alkenyl group, oxoalkyl group, or oxoalkenyl group having 1 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group or an aryloxoalkyl group each having

Assignees

• Shinetsu Chemical Co

Inventors

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

Classifications

• C08F28/02 Primary

  by a bond to sulfur · CPC title

• C08F228/02

  by a bond to sulfur · CPC title

• C08F14/185

  Monomers containing fluorine not covered by the groups C08F14/20 - C08F14/28 · CPC title

• C08F214/18

  Monomers containing fluorine · CPC title

• C08F128/02

  by a bond to sulfur · CPC title