ELECTROACTIVE NANOSTRUCTURED POLYMERS AS TUNABLE ORGANIC ACTUATORS
First Claim
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1. A transducer useful in an electromechanical device, said transducer comprising:
- (a) at least one electrode; and
(b) an actuator element operatively associated with said at least one electrode, said actuator element formed from an actuator composition comprising;
(i) at least one thermoplastic elastomer copolymer, said copolymer comprising at least one flexible midblock and at least two glassy or semicrystalline endblocks; and
(ii) at least one organic solvent that selectively solvates said at least one flexible midblock.
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Abstract
An actuator element formed from an actuator composition is described, along with transducers including the same. The composition comprises: (i) a thermoplastic elastomer copolymer, the copolymer comprising at least one flexible midblock, and at least two glassy or semicrystalline endblocks; and (ii) a liquid modifier that selectively solvates the at least one flexible midblock.
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Citations
34 Claims
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1. A transducer useful in an electromechanical device, said transducer comprising:
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(a) at least one electrode; and (b) an actuator element operatively associated with said at least one electrode, said actuator element formed from an actuator composition comprising;
(i) at least one thermoplastic elastomer copolymer, said copolymer comprising at least one flexible midblock and at least two glassy or semicrystalline endblocks; and
(ii) at least one organic solvent that selectively solvates said at least one flexible midblock. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A transducer useful in an electromechanical device, said transducer comprising:
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(a) at least one electrode; and (b) an actuator element operatively associated with said at least one electrode, said actuator element formed from an actuator composition comprising;
(i) at least one thermoplastic elastomer copolymer, said copolymer comprising at least one flexible midblock and at least two glassy or semicrystalline endblocks; and
(ii) at least one organic solvent that selectively solvates said at least one flexible midblock;
wherein;said flexible midblock is a polyolefin or polydiene midblock; said endblocks are aromatic or acrylic endblocks; said solvent is an oil having a boiling point greater than 50°
C.;said actuator composition comprises a thermoplastic elastomer gel; said thermoplastic elastomer has a molecular weight greater than 10,000; said solvent has a molecular weight less than 10,000; said thermoplastic elastomer is included in said actuator composition in an amount of from 2 to 80 percent by weight; and said solvent is included in said actuator composition in an amount of from 98 to 2 percent by weight. - View Dependent Claims (15, 17, 18, 20, 23, 24)
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14. (canceled)
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16. (canceled)
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19. (canceled)
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21-22. -22. (canceled)
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25. An actuator element formed from an actuator composition, said composition comprising:
- (i) at least one thermoplastic elastomer copolymer, said copolymer comprising at least one flexible midblock, and at least two glassy or semicrystalline endblocks; and
(ii) at least one organic solvent that selectively solvates said at least one flexible midblock. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
- (i) at least one thermoplastic elastomer copolymer, said copolymer comprising at least one flexible midblock, and at least two glassy or semicrystalline endblocks; and
Specification