Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers
AssigneeBend Research, Inc.
InventorsHarold K. Lonsdale, Carl C. Wamser
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Abstract
The preparation of a novel class of thin film membranes by interfacial polymerization is disclosed, said membanes incorporating as part of their polymeric structure the functionality of monomeric or oligomeric precursors. Specific embodiments include porphyrin and phthalocyanime derivatives that are photochemically or electrochemically active, as well as chemically asymmetric membranes.
Claims10
A method of initiating redox reactions comprising transporting photochemically generated electrons through an ultrathin membrane on a support, said ultrathin membrane comprising the interfacial polymerization reaction product made from at least one prepolymer of the type M.sub.F X.sub.m, M.sub.F 'Y.sub.n and N.sub.F Y.sub.n wherein
- M.sub.F and M.sub.F ' are monomeric or oligomeric moieties that are selectively photochemically or electrochemically reactive,
- N.sub.F is a linkable or crosslinkable monomeric or oligomeric moiety that is not photochemically or electrochemically reactive,
- X and Y are groups which render said prepolymers reactive in an interfacial polymerization reaction,
- m and n are integers .gtoreq.2, and wherein said interfacial polymerization reaction product possesses substantially the same selective photochemical or electrochemical reactivity as M.sub.F and M.sub.F '.
Dependencies are inferred from the claim text.