Stimulus-responsive compound, deformable material, and actuator

Patent metadata

Field	Value
Publication number	US-9234099-B2
Application number	US-201314419727-A
Country	US
Kind code	B2
Filing date	Aug 8, 2013
Priority date	Aug 9, 2012
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

A stimulus-responsive compound includes a pair of polysiloxane chains, a cross-linking moiety which cross-links the polysiloxane chains, and a liquid crystal moiety which is bonded to the polysiloxane chain. The cross-linking moiety includes a unit A which has a bond functioning as a rotation axis, and also has first and second groups located at different ends of the bond, a first unit B which is disposed at a first bonding site of the first group, a second unit B which is disposed at a first bonding site of the second group, a first unit C, and a second unit C. The first unit C and one of the polysiloxane chains are bonded to each other. The second unit C and the other of the polysiloxane chains are bonded to each other. The first unit B and the second unit B are bonded to each other by a reduction reaction.

First claim

The invention claimed is:

1. A stimulus-responsive compound, comprising:
a pair of polysiloxane chains;
a cross-linking moiety which cross-links the pair of polysiloxane chains; and
a liquid crystal moiety which is bonded to at least one of the pair of polysiloxane chains and includes a functional group having liquid crystallinity, wherein
the cross-linking moiety includes:
a unit A which has a bond functioning as a rotation axis, and also has a first group located at one end of the bond and a second group located at the other end of the bond;
a first unit B which is disposed at a first bonding site of the first group;
a second unit B which is disposed at a first bonding site of the second group;
a first unit C; and
a second unit C, and
the first unit C and one of the pair of polysiloxane chains are bonded to each other,
the second unit C and the other of the pair of polysiloxane chains are bonded to each other, and
the first unit B and the second unit B are bonded to each other by a reduction reaction.

2. The stimulus-responsive compound according to claim 1 , wherein the unit A is one group selected from the group consisting of the following formula (1), the following formula (2), and the following formula (3):

3. The stimulus-responsive compound according to claim 1 , wherein the first unit B and the second unit B are each a group represented by the following formula (4):

4. The stimulus-responsive compound according to claim 1 , wherein the first unit C and the second unit C each have an alkylene group having 4 or more and 10 or less carbon atoms.

5. The stimulus-responsive compound according to claim 1 , wherein the functional group having liquid crystallinity has a plurality of ring structures, and
one or more halogen atoms are bonded to one of the plurality of ring structures.

6. A deformable material comprising the stimulus-responsive compound according to claim 1 .

7. The deformable material according to claim 6 , wherein an electronically conductive substance is contained.

8. The deformable material according to claim 6 , wherein the electronically conductive substance contains a carbon material.

9. The deformable material according to claim 6 , wherein the electronically conductive substance is in the form of a particle.

10. The deformable material according to claim 9 , wherein the electronically conductive substance has an average particle diameter of 1 nm or more and 10 μm or less.

11. An actuator, wherein the actuator is produced by using the deformable material according to claim 6 .

Assignees

• Seiko Epson Corp

Inventors

• Otake Toshihiro

Classifications

• C08K3/04 Primary

  Carbon · CPC title

• C08J7/12

  Chemical modification · CPC title

• C08G77/48

  in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms (C08G77/42 takes precedence) · CPC title

• C08L83/14

  in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms (C08L83/10 takes precedence) · CPC title

• C08G77/28

  sulfur-containing groups · CPC title