Crosslinkable side-chain polyimides for NLO applications
OwnerDiyun Huanginventor
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Abstract
Aromatic polyimide polymers and copolymers are described that have pendant side-chain crosslinkable groups. The polymers and copolymers may further include pendant side-chain NLO chromophores. The polymers and copolymers are useful in a variety of NLO applications.
Claims25
A composition comprising (a) a linear polyimide polymer or copolymer that includes pendant crosslinkable groups, wherein the polymer or copolymer comprises the reaction product of an aromatic dianhydride and an aromatic diamine, and (b) a chromophore having the formula D-π-A where π is a π bridge including a thiophene ring having oxygen atoms bonded directly to the 3 and 4 positions of the thiophene ring, D is a donor, and A is an acceptor.
Dependencies are inferred from the claim text.