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.
Claims8
A polymer comprising a bis(azobenzene)-diamino monomer defined by a general chemical formula (I):
- wherein L′ is selected from the group consisting of
A bis(azobenzene)-containing polyamic acid, comprising a reaction product of a bis(azobenzene)-diamino monomer and a dianhydride, 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 polyimide defined by a general chemical formula (II):
- wherein n is a degree of polymerization;
- wherein
- is selected from the group consisting of
- and
- wherein -L- is selected from the group consisting of
Dependencies are inferred from the claim text.