A study of thermal, optical and electrical properties of new branched triphenylamine-based polyazomethines

Sęk, Danuta; Jarząbek, Bożena; Grabiec, Eugenia; Kaczmarczyk, Bożena; Janeczek, Henryk; Sikora, Andrzej; Hreniak, Agnieszka; Palewicz, Marcin; Łapkowski, Mieczysław; Karoń, Krzysztof; Iwan, Agnieszka

doi:10.1016/j.synthmet.2010.07.026

Cited by 37 publications

(14 citation statements)

References 24 publications

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“…[1][2][3][4] Moreover, polyazomethines as thermostable polymers are interesting candidates for the potential application in electronics, optoelectronics, and photonics. [5,6] Therefore, they were intensely explored and there is in literature an extremely high number of articles about polyazomethines, as well as metallic complexes derived from them. Combinations of different types of the bifunctional co-monomers having proper reactive groups have been used to design the desired polyazomethine structures (fully aromatic, aliphatic or mixed) or to confer them some wanted properties.…”

Section: Introductionmentioning

confidence: 99%

A silicon-containing polyazomethine and derived metal complexes: synthesis, characterization, and evaluation of the properties

Zaltariov¹,

Cazacu²,

Shova³

et al. 2014

Designed Monomers and Polymers

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A new dialdehyde-containing silicon was prepared by a reaction of Williamson-type and structurally characterized. By its subsequent condensation with 2,5-bis(p-aminophenyl)-1,3,4-oxadiazole, a multifunctional polyazomethine-containing imine, phenylene, oxadiazole, ether, and carbosilane groups within the chain was prepared. The complexes of this polymer with Co(II), Cu(II), and Zn(II) ions formed on the basis of electron-donor ability of the oxadiazole and azomethine groups were prepared in a one-step approach by mixing the two precursors of polyazomethine (dialdehyde and diamine) with corresponding metal salt. The ligand and metal complexes were characterized by spectral (Fourier transform infrared (FTIR), 1 H, and 13 C NMR) methods. The thermal, optical, electrochemical, and dielectric properties were studied and the effects of the metal insertion in dependence on its nature over these properties were evaluated. All compounds are soluble in common organic solvents and show low glass transitions due to the flexible ether and Si-C bonds, are fluorescent, mainly due to the oxadiazole ring, are redox active and have high dielectric constant due to the presence of oxadiazole, azomethine metal units.

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Section: Introductionmentioning

confidence: 99%

A silicon-containing polyazomethine and derived metal complexes: synthesis, characterization, and evaluation of the properties

Zaltariov¹,

Cazacu²,

Shova³

et al. 2014

Designed Monomers and Polymers

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“…5 The researchers are focusing their attention toward conjugated azomethine polymers during recent years 6,7 because of their useful properties such as electrical conductivity, optoelectronic and thermal stability. 8,9 They also exhibit liquid crystalline behavior. [10][11][12][13][14] Poly(azomethines) containing (-N=C) functional group have been applied successfully to some extent as transporting materials in organic solar cells [15][16][17] and their application.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of New Photoresponsive, Ortho and Para Oriented Azomethine Polymers

Qureshi

Khuhawar

Jahangir

2018

ACSi

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Five new azomethine polymers having aliphatic-aromatic moieties were synthesized by polycondensation reaction of dialdehydes and diamines. The dialdehyde monomers differ only in the orientation of the aromatic ring (ortho or para) and were synthesized by condensation reaction between aromatic aldehyde and 1,6-dibromohexane. The molecular mass of the monomers was recorded through E.I mass spectrum. The polymers structures were confirmed by elemental microanalysis, FT-IR, 1 HNMR and UV-Vis Spectroscopy. The morphology of monomers and polymers was evaluated by scanning electron microscopy (SEM). All the polymers were soluble in DMSO (on heating) and somewhat in other solvents. Thermal stability of polymers was analyzed by thermogravimetry (TG) and differential thermal analysis (DTA), all the polymers showed good thermal stability higher than their corresponding monomers. The TG of polymers indicated maximum rate of weight loss (T max) within 412-708 °C. Fluorescence emission spectra of polymers were recorded and the results indicated that all the polymers were photo-responsive and indicated 1 to 4 emission bands with maximum within 349-606 nm. The limit of detection of polymers was within 0.625-1.25 µg/ml. The polymers were also examined for their antimicrobial activities against bacteria and fungi.

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“…These polymers are also being studied for the applications of optoelectronics. 2,[19][20][21][22][23][24] The poly Schiff bases may also form liquid crystalline melts, the aromatic azomethine blocks being good mesogens. 3,25,26 The polymeric Schiff bases are attractive polymers, but they indicate poor solubility in common organic solvents and are difficult to liquate for practical applications in various fields.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Biological Studies of New Linear Thermally Stable Schiff Base Polymers with Flexible Spacers

Qureshi

Khuhawar

Jahangir

et al. 2016

ACSi

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Five new linear Schiff base polymers having azomethine structures, ether linkages and extended aliphatic chain lengths with flexible spacers were synthesized by polycondensation of dialdehyde (monomer) with aliphatic and aromatic diamines. The formation yields of monomer and polymers were obtained within 75-92%. The polymers with flexible spacers of n-hexane were somewhat soluble in acetone, chloroform, THF, DMF and DMSO on heating. The monomer and polymers were characterized by melting point, elemental microanalysis, FT-IR, 1 HNMR, UV-Vis spectroscopy, thermogravimetry (TG), differential thermal analysis (DTA), fluorescence emission, scanning electron microscopy (SEM) and viscosities measurement of their dilute solutions. The studies supported formation of the monomer and polymers and on the basis of these studies their structures have been assigned. The synthesized polymers were tested for their antibacterial and antifungal activities.

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A study of thermal, optical and electrical properties of new branched triphenylamine-based polyazomethines

Cited by 37 publications

References 24 publications

A silicon-containing polyazomethine and derived metal complexes: synthesis, characterization, and evaluation of the properties

A silicon-containing polyazomethine and derived metal complexes: synthesis, characterization, and evaluation of the properties

Synthesis and Characterization of New Photoresponsive, Ortho and Para Oriented Azomethine Polymers

Synthesis, Characterization and Biological Studies of New Linear Thermally Stable Schiff Base Polymers with Flexible Spacers

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