Polymer Film with Optically Controlled Form and Actuation (Preprint)
Abstract
Polymer networks containing azobenzene liquid-crystalline (azo LC) moieties are capable of changing their macroscopic shape when influenced by light. Two distinct processes take place in azo LCs due to the photoisomerization of the azobenzene chromophores. Trans-cis isomerization and thus a reduced order parameter is dominant at UV wavelengths whereas trans-cis-trans isomerization processes are dominant at visible wavelengths resulting in orientation of the molecules perpendicular to the beam polarization.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2006
- Accession Number
- ADA474968
Entities
People
- Nelson Tabiryan
- Svetlana Serak
- Timothy J. Bunning
- Xio-man Dai
Organizations
- Air Force Research Laboratory