Phthalocyanine, side-chain polymer

In another synthesis the phthalocyanine molecules are polymerized via groups at the end of the side chains (217). This polymer also shows hardly any luminescence at 4.2 K. 

Polymerization of phthalocyanines in water occurs for derivatives substituted with oligo (ethylene oxide) side-chains (27c).167 168 In the lyotropic mesophases in water supramolecular polymers are present, and a comparative aggregation study between tetraphen-ylporphyrins and phthalocyanines proved the polymerization of the phthalocyanines to be stronger.168 The strong arene—arene interactions and the flatness of the aromatic core in the phthalocyanines causes them to aggregate more strongly, also mediated by the additional hydrophobic effect. 

A connectivity of 1 is given for side chain metal-containing polymers as 1 in which the metal complex is connected via one bond to the main chain [11]. Additional examples for other connectivities are (Fig. 1-8) connectivity 2 in metal(yne)s 2 [12] connectivity 3 in arsenic(III) sulfide 3 connectivity 4 in a polymeric methyl rhenium oxide of the formula Ho.5[(CH3)o.92Re03] co 4 [13] or polymeric phthalocyanines 5 [14] connectivity 8 in lanthanide complexes of bis(tetradendate) Schiff base bridging ligands 6 [15]. 

Poly(CH2-CHCOOROPc)fl C8H17 or C12H25 Side chain phthalocyanine polymers Pc substituted with various groups metal free, Cu and Ni Pc s M up to 47 000 liquid crystalline absorption and fluorescence spectroscopy. [171]... 

Poly[acrylamide-CuPc(NO)2] Side chain phthalocyanine polymer water soluble also doped with iodine photoconductivity discussed. [175]... 

The presence of flexible side-chains make them soluble in common organic solvents [98,204-7]. These polymers have been proved by solid-state NMR and small-angle X-ray diffraction measurements to have hexagonal columnar structures in which the phthalocyanine cores are horizontally stacked with respect to the columnar axis, even at ambient temperatures [107,139,207]. The rigid rod nature of these polymers have been proved experimentally [207,208]. Their completely hydrophobic polymer allows for the controlled and highly reproducible deposition of ultra-thin films. LB films are used as branes in field effect transistors (PET S) and chemical sensors [209]. Devices based on the LB films show stable electroactivity and the electrodes show an almost Nemstian response. The change of pH in the electrolyte does not show any long time drifts. 

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