Metal ion porphyrin-containing poly(imide)
AssigneeSRI International
InventorsTilak R. Bhardwaj, Susanna C. Ventura, Subhash C. Narang
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Abstract
The present invention relates to porphyrins and to metal ion-containing monomers and polymers. The monomer ##STR1## wherein A, R.sup.1,R.sup.2,R.sup.3, and R.sup.4 defined herein, is used with dianhydride to produce a porphyrin polymer or a metal ion containing porphyrin polymer. These polymers are useful as electrical conductors and as liquid crystal polymers, non-linear (NLO) materials, magnetic materials, electrochromic polymers photo-and electrocatalysts and advanced materials.
Claims19
A polyporphyrin-containing polymer of the structure:
- ##STR21## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from H, alkyl having 1 to 6 carbon atoms, phenyl or phenyl substituted with 1 to 3 alkyl groups each having 1 to 6 carbon atoms or with 1 to 3 halogen atoms;
- R.sup.5 is independently selected from aryl, substituted aryl, alkylenearyl, alkylene substituted aryl, wherein at least one aryl group is present;
- A in each porphyrin group of the polymer is independently selected from two hydrogen groups or a metal atom selected from tin, silicon, germanium, a transition metal, an actinide metal or a lanthanide metal;
- and
- n is an integer between 3 and 10,000.
A process to produce a polyporphyrin-containing polymer of the structure:
- ##STR24## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from H, alkyl having 1 to 6 carbon atoms, phenyl or phenyl substituted with alkyl groups having 1 to 6 carbon atoms or with 1 to 3 halogen atoms;
- R.sup.5 is independently selected from aryl, substituted aryl, alkylenearyl or alkylene substituted aryl, wherein at least one aryl group is present;
- A in each porphyrin group of the polymer is independently selected from two hydrogen groups or a metal atom selected from the group consisting of tin, silicon, germanium, a transition metal, an antinide metal and a lanthanide metal;
- and
- n is an integer between 3 and 10,000;
- which process comprises:
- (a) mixing 1 equivalent of ##STR25## wherein A, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined above with 1 or more equivalents of aryl dianhydride of the structure:
- ##STR26## and R.sup.5 is defined hereinabove, at 50.degree. to 100.degree. C. for 0.5 to 1 hr;
- and recovering the polyporphyrin-containing poly(imide) polymer.
Dependencies are inferred from the claim text.