Biryan, Fatih published the artcileElectrical, thermal behaviors and synthesis of intramolecular cobalt phthalocyanine with single-chain polymer structure, Safety of Phthalonitrile, the main research area is vinyl polymer cobalt phthalocyanine complex graphene nanocomposite.
Firstly, poly[4-((4-vinylbenzyl)oxy)phthalonitrile]-co-styrene, [poly(VBOP-co-St)], which is used as a linear copolymer precursor containing phthalonitrile pendant group was prepared from copolymerization of VBOP and St by atom transfer radical polymerization method at 110°. Then, complex synthesis of cobalt phthalocyanine in the single-chain polymer (SCP-CoPc complex) via the intramol. macrocyclization reaction of cobalt and phthalonitrile group in poly(VBOP-co-St) was carried out at 150° in the presence of excess cyclohexanol. Both linear copolymer precursor and formation of cobalt phthalocyanine within a single-chain polymer were confirmed by FT-IR, 1H-NMR, 13C-NMR and UV/Vis spectroscopy techniques. Particularly, the formation of SCP-CoPc complex was characterized by almost disappearance of -C≃N band at 2230 cm-1 of the FT-IR and appearance of Q band around 672 nm and the B band in the near UV region at 350 nm of UV/Vis spectroscopy. The pure poly(VBOP-co-St), SCP-CoPc complex and the residue SCP-CoPc complex heated to 500° were characterized by SEM images, and the element analyses were estimated from x-ray energy dispersive spectroscopy (x-ray EDS). The EDS elemental anal. results of the residual of SCP-CoPc complex degraded to 500° showed that CoO [cobalt(II)oxide] compound occurred. The thermal properties of poly(VBOP-co-St) and SCP-CoPc complex were investigated through thermogravimetric anal. and differential scanning calorimeter. The conducting nanographene-based SCP-CoPc composites were prepared DC and a.c. elec. conductivity and dielec. properties were investigated. The ac dielec. measurements of poly(VBOP-co-St), SCP-CoPc complex and composites were investigated at room temperature between 100 and 20 kHz depending on the a.c. conductivities. Also, the activation energy profile of SCP-CoPc/4% (by weight) nanographene composite was revealed by measuring the DC conductivity of individual composite material.
Polymer Bulletin (Heidelberg, Germany) published new progress about Atom transfer radical polymerization. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts