Ion exchange membrane, polymer element, electronic apparatus, camera module, and imaging device

Patent metadata

Field	Value
Publication number	US-10351684-B2
Application number	US-201415034589-A
Country	US
Kind code	B2
Filing date	Nov 19, 2014
Priority date	Dec 2, 2013
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

An ion exchange membrane includes: a cation exchange resin material; and a macromolecular material that has an acidic functional group and is mixed in the cation exchange resin material.

First claim

The invention claimed is:

1. An ion exchange membrane comprising:
a cation exchange resin material; and
a macromolecular material that has an acidic functional group and is mixed in the cation exchange resin material, wherein
a contained amount of the macromolecular material in terms of a weight ratio in the cation exchange resin material and the macromolecular material is 5% or more and 25% or less,
the macromolecular material having the acidic functional group has an ion exchange capacity as an IEC value of 2 meq/g or more and the cation exchange resin material has an ion exchange capacity as an IEC value of 0.9 to 1.5 meq/g, and
the macromolecular material has a molecular weight of 10,000 or more and is selected from the group consisting of:
a polystyrene sulfonate represented by Chemical Formula 2:

a polyvinylsulfonic acid represented by Chemical Formula 3:

a polyethersulfonic acid represented by Chemical Formula 4 in which n is an integer of 1 to 6:

 and
a polyethersulfonic acid represented by Chemical Formula 5 in which n′ is an integer of 1 to 6:

2. The ion exchange membrane according to claim 1 , wherein an ion exchange capacity of the macromolecular material having an acidic functional group is larger than that of the cation exchange resin material.

3. A polymer element comprising:
a pair of electrode layers; and
a macromolecular layer disposed between the pair of electrode layers, wherein
at least one of the pair of electrode layers and the macromolecular layer includes
a cation exchange resin material, and
a macromolecular material that has an acidic functional group and is mixed in the cation exchange resin material,

a contained amount of the macromolecular material in terms of a weight ratio in the cation exchange resin material and the macromolecular material is 5% or more and 25% or less,
the macromolecular material having the acidic functional group has an ion exchange capacity as an IEC value of 2 meq/g or more and the cation exchange resin material has an ion exchange capacity as an IEC value of 0.9 to 1.5 meq/g, and
the macromolecular material has a molecular weight of 10,000 or more and is selected from the group consisting of:
a polystyrene sulfonate represented by Chemical Formula 2:

a polyvinylsulfonic acid represented by Chemical Formula 3:

a polyethersulfonic acid represented by Chemical Formula 4 in which n is an integer of 1 to 6:

 and
a polyethersulfonic acid represented by Chemical Formula 5 in which n′ is an integer of 1 to 6:

4. The polymer element according to claim 3 , wherein the pair of electrode layers include a conductive material powder, the cation exchange resin material, and the macromolecular material.

5. The polymer element according to claim 4 , wherein the conductive material powder is carbon powder.

6. The polymer element according to claim 3 , wherein the pair of electrode layers and the macromolecular layer each include the cation exchange resin material and the macromolecular material.

7. The polymer element according to claim 3 , configured as a polymer actuator element.

8. The polymer element according to claim 3 , configured as a polymer sensor element.

9. The polymer element according to claim 3 , wherein the macromolecular layer is impregnated with an ionic substance.

10. An electronic apparatus comprising
a polymer element having a pair of electrode layers and a macromolecular layer disposed between the pair of electrode layers, wherein
at least one of the pair of electrode layers and the macromolecular layer includes
a cation exchange resin material, and
a macromolecular material that has an acidic functional group and is mixed in the cation exchange resin material,

a contained amount of the macromolecular material in terms of a weight ratio in the cation exchange resin material and the macromolecular material is 5% or more and 25% or less,
the macromolecular material having the acidic functional group has an ion exchange capacity as an IEC value of 2 meq/g or more and the cation exchange resin material has an ion exchange capacity as an IEC value of 0.9 to 1.5 meq/g, and
the macromolecular material has a molecular weight of 10,000 or more and is selected from the group consisting of:
a polystyrene sulfonate represented by Chemical Formula 2:

a polyvinylsulfonic acid represented by Chemical Formula 3:

a polyethersulfonic acid represented by Chemical Formula 4 in which n is an integer of 1 to 6:

 and
a polyethersulfonic acid represented by Chemical Formula 5 in which n′ is an integer of 1 to 6:

11. A camera module comprising:
a lens; and
a drive device that is configured to include a polymer element and drives the lens, wherein
the polymer element includes
a pair of electrode layers and
a macromolecular layer disposed between the pair of electrode layers,

at least one of the pair of electrode layers and the macromolecular layer includes
a cation exchange resin material, and
a macromolecular material that has an acidic functional group and is mixed in the cation exchange resin material,

a contained amount of the macromolecular material in terms of a weight ratio in the cation exchange resin material and the macromolecular material is 5% or more and 25% or less,
the macromolecular material having the acidic functional group has an ion exchange capacity as an IEC value of 2 meq/g or more and the cation exchange resin material has an ion exchange capacity as an IEC value of 0.9 to 1.5 meq/g, and
the macromolecular material has a molecular weight of 10,000 or more and is selected from the group consisting of:
a polystyrene sulfonate represented by Chemical Formula 2:

a polyvinylsulfonic acid represented by Chemical Formula 3:

a polyethersulfonic acid rep

Assignees

• Dexerials Corp

Inventors

• Nagai Nobuyuki
• Ishida Takehisa
• Kato Yusaku

Classifications

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04N23/55

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• C08J2327/18

  Homopolymers or copolymers of tetrafluoroethylene · CPC title

• C08J2441/00

  Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur; Derivatives of such polymers · CPC title