Bis(azobenzene) diamines and photomechanical polymers made therefrom
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsLoon-Seng Tan, David Huabin Wang, Jeong Jae Wie, Timothy J. White
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Abstract
Bis(azo-benzene) diamine monomers and a method of synthesizing the monomers are provided. The bis(azo-benzene) diamine monomers, in combination with amine reactive monomers, form polymers, such as polyimides and copolyimides, having photomechanical and thermomechanical properties.
Claims7
A bis(azobenzene)-containing copolyimide comprising a bis(azobenzene)-diamino monomer, a dianhydride, and a non- bis(azobenzene) diamine, the bis(azobenzene)-diamino monomer defined by a general chemical formula (I):
- wherein L′ is selected from the group consisting of
A bis(azobenzene)-containing copolyimide defined by a general chemical formula (III):
- wherein n is a degree of polymerization;
- wherein x is in a range from about 0.01 to about 0.99 mol %;
- wherein
- is selected from the group consisting of
- wherein —L— is selected from the group consisting of
- and
- wherein
- is selected from the group consisting of
Dependencies are inferred from the claim text.