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Peng Zhao,우재완,박용성,Yenan Song,Fushi Zhang 한국고분자학회 2010 Macromolecular Research Vol.18 No.5
Novel phthalocyanine sulfonate (H2PPcSx) was synthesized from the sulfonation of a steric polymeric phthalocyanine and investigated as a photocatalyst in a homogenous system. The molecular weight of H2PPcSx was characterized as 9213-11692 by MALDI-TOF MS, classified as an oligomer with a 14-18 degree of polymerization. The electronic spectrum indicated a less aggregative tendency of H2PPCSx than the usual monomeric phthalocyanine photocatalyst. Efficient photodegradation of butyl Rhodamine B (bu Rh B) catalyzed by H2PPcSx was achieved in a homogenous solution; the spectral character indicated that decomposition occurred on the benzene ring in the Rh B molecular. For a 50 mg L-1 bu Rh B solution, the percentage degradation reached 95% in 4 h using 100 mg H2PPcSx as a photocatalyst. A mechanism involving the participation of both singlet oxygen and radicals was established for the photodegradation.
Synthesis, Characterization and Electrical Properties of Novel Steric Phthalocyanine Polymers
Qiang Liang,Peng Zhao,우재완,박용성,Lihong Niu,Fushi Zhang 한국고분자학회 2010 Macromolecular Research Vol.18 No.2
Two novel steric polymeric phthalocyanines, with copper (CuPPc) and aluminum hybrid zinc (Al/ZnPPc)as the central atoms, were synthesized by the cyclic condensation of tetrahedral tetra-phthalonitriles. The IR and UVVIS spectra of the synthesized polymers indicated a moderate degree of polymerization, somewhere between the monomeric phthalocyanine and planar covalent polymer. Good thermal stability and a high metallic content of CuPPc and Al/ZnPPc were verified by TGA and ICA-AAS methods. The metallic atoms were distributed uniformly and exhibited different binding features with -CN, -O, -N in the polymer, as indicated by EDS and XPS analysis. High electrical conductivity was observed before and after iodine doping compared to the normal polymeric phthalocyanine.