Transition metal bis(dithiolene) complex polymers
AssigneeBoard of Regents, The University of Texas System
InventorsJohn R. Reynolds, Fei Wang
Life of this patent
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Abstract
A new class of transition metal bis(dithiolene) complex polymers having improved physical characteristics. These polymers are generally prepared by first preparing a bifunctionalized transition metal bis(dithiolene) complex, then reacting the bifunctionalized complex with one or more other bifunctional compounds. A wide variety of flexible linkage can be incorporated into the polymer chain via the bifunctional reactant to vary the physical properties of the resulting polymer. The polymers can be used as near infrared filters, both as supported and freestanding films.
Claims46
A polymer having the formula:
- ##STR12## wherein:
- --A-- is derived from a reactive functional group;
- --R-- is an organic substituent derived from a bifunctional molecule capable of reacting with the reactive functional group;
- M is a transition metal;
- q is the oxidation state of the transition metal complex;
- and
- n is the chain length of the polymer.
A copolymer having the random formula:
- ##STR16## wherein:
- --A-- is derived from a reactive functional group;
- --R"-- is an organic substituent derived from a molecule bifunctionalized with reactive functional groups;
- --R-- is an organic substituent derived from a bifunctional molecule capable of reacting with the reactive functional groups;
- M is a transition metal;
- q is the oxidation state of the transition metal complex;
- n is the chain length of the copolymer segments having bifunctionalized transition metal complex comonomer units and is a varying positive integer;
- m is the chain length of the copolymer segments having --R"-- comonomer units and is a varying positive integer;
- and
- x is the overall chain length of the copolymer.
A method for preparing a transition metal bis(dithiolene) complex polymer, comprising the steps of:
- preparing a transition metal bis(dithiolene) complex which is bifunctionalized;
- and
- linking the bifunctional transition metal bis(dithiolene) complex with an organic compound which is bifunctionalized with functional groups capable of reacting with the bifunctional metal bis(dithiolene) complex.
A method for preparing a transition metal bis(dithiolene) complex copolymer, comprising the steps of:
- preparing a transition metal bis(dithiolene) complex which is bifunctionalized;
- providing a comonomer compound which is bifunctionalized;
- and
- copolymerizing the bifunctional transition metal bis(dithiolene) complex and bifunctional comonomer compound with an organic compound which is bifunctionalized with functional groups capable of reacting with said bifunctional complex and compound.
Dependencies are inferred from the claim text.