Synthesis, characterization, aggregation and thermal properties of a novel polymeric metal-free phthalocyanine and its metal complexes

Bílgín, Ahmet; Yağcı, Çiğdem; Yıldız, Ufuk; Özkazanç, Ersel; Tarcan, Erdoğan

doi:10.1016/j.poly.2009.04.026

Cited by 11 publications

(8 citation statements)

References 30 publications

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“…Composition of the CF materials really depends on the producing company but most of them are based on anthraquinone (red) and phtalocyanine (green or blue) [11]. These materials show the weight loss and exothermic reaction at temperatures lower than 600 °C [12,13,14]. These results indicate that thermal decomposition of the CF pigments could occur at lower than 600 °C.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of Indium Tin Oxide (ITO) Nanoparticles Recovered by Lift-off Method from TFT-LCD Panel Scraps

2014

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In this study, indium-tin-oxide (ITO) nanoparticles were simply recovered from the thin film transistor-liquid crystal display (TFT-LCD) panel scraps by means of lift-off method. This can be done by dissolving color filter (CF) layer which is located between ITO layer and glass substrate. In this way the ITO layer was easily lifted off the glass substrate of the panel scrap without panel crushing. Over 90% of the ITO on the TFT-LCD panel was recovered by using this method. After separating, the ITO was obtained as particle form and their characteristics were investigated. The recovered product appeared as aggregates of particles less than 100 nm in size. The weight ratio of In/Sn is very close to 91/9. XRD analysis showed that the ITO nanoparticles have well crystallized structures with (222) preferred orientation even after recovery. The method described in this paper could be applied to the industrial recovery business for large size LCD scraps from TV easily without crushing the glass substrate.

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Section: Resultsmentioning

confidence: 99%

Characteristics of Indium Tin Oxide (ITO) Nanoparticles Recovered by Lift-off Method from TFT-LCD Panel Scraps

2014

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“…45 Broad endothermic peaks in DSC thermograms between 50 and 100 • C are ascribed to the alcohol and water desorption during the synthesis or the adsorbed humidity or air gases' desorption during storage of the samples. 28,54 While compounds 3 and 4 exhibit melting points at 115 and 330 • C (Figure 4), respectively, no melting point is observed for the metallophthalocyanine polymers (5)(6)(7)(8). The main degradation step is visible between 350 and 450 • C with about 22%-84% weight loss for all samples (3)(4)(5)(6)(7)(8) in the TGA/DTG measurements.…”

Section: Dsc and Dtg/tga Measurementsmentioning

confidence: 95%

“…20,28,30 The polymeric metal-free phthalocyanine with imido end groups was dried under vacuum after the appropriate purification steps. …”

Section: The Conversion Of Cyano End Groups Of the Polymeric Metal-frmentioning

confidence: 99%

“…25 The insolubility of polymeric phthalocyanines in water and common organic solvents restricts their usage in some fields and makes their structural investigations difficult. 24 We have previously presented several types of peripherally tetra-and octa-substituted hydroxyl-functionalized monomeric phthalocyanines 26,27 and peripherally mixed nitrogen-and oxygen-donor moieties, 28 only sulfur linkage moieties, 29 and lariat ether 30 substituted polymeric phthalocyanines.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and properties of novel polymeric metal-free and metallophthalocyanines containing peripherally long 1,2-bis[(3-oxapropyl)oxa]benzene derivatives

Bílgín

Yanmaz²,

Yağcı³

2014

Turk J Chem

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New polymeric phthalocyanine moieties (M = 2H, Zn, Ni, Cu, and Co) were synthesized via polytetracyclomerization reaction of o -bis[3-(3,4-dicyanophenoxy)propyloxy]benzene (3), which can be obtained by the reaction of 4-nitrophthalonitrile with o -bis[(3-hydroxypropyl)oxy]benzene. Aggregation and disaggregation behavior of the polymeric phthalocyanine ( 5) was studied with some alkali and earth alkali metal cations. Measured intrinsic viscosities of the polymeric phthalocyanines exhibited a substantial decreasing tendency with dilution of the solution. Thermogravimetric analysis was performed under air by using DSC and DTG/TGA techniques and indicated that these polymers have good thermal stability. AC and DC electrical conductivities of the polymeric phthalocyanines were investigated in the frequency range 100 Hz-1 MHz within the temperature range 298-343 K. AC/DC conductivities of the samples were found to be between 10 −5 and 10 −7 S cm −1 at ambient temperature under argon atmosphere. The structures of new synthesized compounds were characterized by using microanalysis; various spectroscopic methods such as UV-Vis, FT-IR, 1 H NMR, and 13 C NMR spectroscopy; and MS spectra.

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“…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].…”

Section: Introductionmentioning

confidence: 99%

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

Bílgín

Yağcı

2014

European Polymer Journal

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Synthesis, characterization, aggregation and thermal properties of a novel polymeric metal-free phthalocyanine and its metal complexes

Cited by 11 publications

References 30 publications

Characteristics of Indium Tin Oxide (ITO) Nanoparticles Recovered by Lift-off Method from TFT-LCD Panel Scraps

Characteristics of Indium Tin Oxide (ITO) Nanoparticles Recovered by Lift-off Method from TFT-LCD Panel Scraps

Synthesis and properties of novel polymeric metal-free and metallophthalocyanines containing peripherally long 1,2-bis[(3-oxapropyl)oxa]benzene derivatives

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

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