Novel phthalocyanine polymers with very flexible pentathiatetraethylene units

Synthesis, characterization and electrical properties of novel steric phthalocyanine polymers

“…The Q band of these polymers are located between those for planner alkyleneoxy-bridged polymeric phthalocyanine 8 (Q band above 800 nm) and those for tetranuclear phthalocyanine monomer-linked pentaerythritol 21 (Q band at 676 nm), suggesting that the degree of polymerization of CuPPc and Al/ZnPPc is probably larger than the monomer itself but not close in size to the highly polymerized planner compounds. 18 The condensation reaction appeared to be effectively controlled, with M η of the two polymers consistently ranging between 20,000 and 25,000 over ten repeated tests.…”

“…18 The average viseosimetric molecular weight (M η ) was calculated by comparative method using PVP-K30 (MW/n 44,000-54,000) as standard. Ten parallel measurements for each sample were employed to decrease the error.…”

“…The doping of iodine into polymeric phthalocyanines CuPPc and Al/ZnPPc was achieved by stirring the content (molar ratio 1:1) in n-heptane under N 2 atmosphere at 318 k for 48 h. 18 After cooling, the solid was filtered out and washed with Results and Discussion FTIR/Uv-Vis/Fluorescence Spectroscopy. The FTIR spectrum of CuPPc shows wide peak at 3300-3700 cm -1 which associates to the stretching of N-H bonds in phthalocyanine.…”

“…The covalence can form with the phthalonitrile precursor like benzo-tetracarbonnitrile 8,9 or bi-phthalonitrile linkage with other groups. 17,18 The linking of phthalocyanine with active groups in polymeric compounds also can obtain phthalocyanine polymers. 19 In these polymeric compounds the phthalocyanine rings spread in a planar on two dimensional, mostly of them are difficult to dissolve in normal organic solvent.…”

Octa-armed star-shaped poly(ε-caprolactone)s with a phthalocyanine core by ring-opening polymerization: Synthesis and characterization

“…We have previously outlined a concept for the synthesis of new types of polymeric phthalocyanines bearing peripherally mixed sulphur-and oxygen-donor moieties [45], mixed nitrogen-and oxygen-donor moieties [46], only sulphur linkage moieties [47], lariat ether [48,49], an α-methylferrocenylmethoxy unit [50], and peripherally tetra-and octa-substituted hydroxyl-functionalised monomeric phthalocyanines [51,52]. To the best to our knowledge, there are no studies reported on the synthesis of star-shaped PCL, which is peripherally linked to a phthalocyanine core by the ROP, except for the study of Ng et al, in which PCL chains are axially linked to silicon(IV) phthalocyanine dihydroxide [36].…”