Tetraketone porphyrin monomers and the porphyrin-based polymers

Details Tetraketone porphyrin monomers and the porphyrin-based polymers Tetraketone porphyrin monomers and the porphyrin-based polymers

1990-03-12

1992-02-25

Nielsen, Earl

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From ketone or ketene reactant

528 27, 528125, 528128, 528226, 524 80, 524404, 524438, 524440, 525471, C08G 1200

Patent

active

050915029

ABSTRACT:
The present invention relates to a tetraketone of the structure ##STR1##
wherein M is a metal atom and R is selected from phenyl, alkyl substituted phenyl or halogen substituted phenyl. The process to prepare this tetraketone is disclosed. The present invention also relates to a process to produce the tetraketone structure(I). The present invention also relates to the novel polymer of the structure: ##STR2##
and to the process to produce this novel polymer. R is as defined hereinabove, and Ar is a tetraamine substituted organic moiety having at least one aromatic ring. These polymers are useful as liquid crystals and in non-linear optical devices.

REFERENCES:
patent: 4499260 (1985-02-01), Achar et al.

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