Cross-linked liquid crystal polymers, particularly elastomeric versions referred to as liquid crystal elastomers (LCEs), have shown some promise in the field of reconfigurable shapes and surfaces. LCEs are lightly cross-linked, ordered polymers that exhibit reversible shape change in response to a stimulus, such as heat, light, or solvent. To date, commercial uptake of these materials has been limited due to technical issues with defining the alignment of the response and the sensitivity.
Air Force researchers are addressing these issues with novel shape-programmable LCEs and perfecting the method of manufacture for eventual use in many industrial fields. These unique materials have advanced qualities like specific directionality with tunable response, and they can be laid down as a 3-D “Voxel” or a film. Taken further, the materials can contain multiple domains with differing directionality. Applications are diverse and include:
- Sensing of chemicals, temperature, and motion
- Micro- and nano-actuation in pumps, valves, and mixers
- Communications in tunable antennas and lasers
- Biomedical implants that can be deployed in a small size and expanded inside the body
This US patent 9,902,906 is related to US application number 20160313607.
- Material transformation driven by thermal or chemical stimuli
- Typical transition temperatures less than 20 degrees C
- Predictable directionality of response
- Predictable magnitude of response
- One-pot synthesis of LCE material
- US patent 9,902,906 available for license
- Potential for collaboration with Air Force researchers