Synthesis, optical, electrochemical, and thermal stability properties of poly(azomethine-urethane)s

Kaya, İsmet; Kamacı, Musa

doi:10.1016/j.porgcoat.2011.12.010

Cited by 25 publications

(23 citation statements)

References 25 publications

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“…According to Figure 5, absorption peak of PUI-1, PUI-2, and PUI-3 is appeared at 233, 234, and 240 nm, respectively, due to the urethane group in the structure. [28] Also, π → π ⁄ transition peaks of the synthesized polymers were observed between 330 and 390 nm, due to aromatic rings in the polymer chains. [29] Optical band gap values could be obtained by using the following equation as in the literature, [30] and shown in Table 3.…”

Section: Optical and Electrochemical Propertiesmentioning

confidence: 93%

Thermal, fluorescence, and electrochemical characteristics of novel poly(urethane-imide)s

Avcı

Şirin

2013

Designed Monomers and Polymers

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In this study, the novel thermally stable poly(urethane-imide)s (PUIs) were synthesized. The structures of the obtained polymers were confirmed by FT-IR and NMR techniques. The molecular weight distribution parameters of the synthesized PUIs were determined by the size exclusion chromatography (SEC). The synthesized PUIs were also characterized by solubility tests, solution viscosity, TG-DTA, and DSC analyses. Cyclic voltammetry measurements were carried out, and HOMO-LUMO energy levels and electrochemical band gaps (E 0 g ) were calculated from their absorption edges. Additionally, optical band gaps (E g ) were determined by using UV-vis spectra of the materials. Fluorescence measurements were carried out in various concentrated DMSO solutions to determine the optimum concentrations to obtain the maximal PL intensities. Also, morphological characterizations were made by scanning electron microscopy technique.

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Section: Optical and Electrochemical Propertiesmentioning

confidence: 93%

Thermal, fluorescence, and electrochemical characteristics of novel poly(urethane-imide)s

Avcı

Şirin

2013

Designed Monomers and Polymers

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“…was synthesized via steppolymerization reaction in our previous paper [28]. Synthesis procedure of the employed polymer is shown in Fig.…”

Section: Synthesis Of Poly(azomethine-urethane) (Pazu)mentioning

confidence: 99%

“…As shown in Scheme 1, the obtained polymer has composed of hydroxyl (-OH), methoxy (-OCH3) and nitro (-NO2) as substituents group. Moreover, polyurethane formation reaction occurs between diisocyanates and polyol and this reaction starts by nucleophilic attack of hydroxyl group to the unpaired electron couples of diisocyanates [28]. The steric effect of these -OCH3 and nitro -NO2 groups could effected this nucleophilic attack and decrease the polymerization yield.…”

Section: Synthesis Of Poly(azomethine-urethane) (Pazu)mentioning

confidence: 99%

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Hydrophobic poly(azomethine-urethane) Film for Detection of Fe<sup>3+ </sup>Ions in Aqueous Media

Kamacı¹,

Kaya²

2017

Preprint

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Abstract:A new and easy-to-make polymer film sensor was prepared by dip-coating technique and this film used as fluorescent chemosensor for the detection of metal ions in aqueous solution. The proposed film sensor exhibited dual emissions at 540 and 582 nm under a single excitation wavelength. The fluorescence behavior of this film sensor toward metal ions has been investigated using these two wavelengths. The proposed sensor was found to show selectivity and sensitive to Fe 3+ ion when compared the other metal ions in deionized water with excellent photostability. Detection limit of the polymeric film sensor was calculated as 86.15 and 28.90 μM. The results showed that the sensor can be successfully applied to the determination of Fe 3+ ions in aqueous media. Contact angle measurement of PAZU film probe was also investigated and the result showed that the proposed film probe has hydrophobic property.

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“…With differential scanning calorimetry (DSC) thermo-analytical technique, the difference in the amount of heat required for increase the temperature of a sample and reference is measured as a function of temperature. Authors [6,26,27,[41][42][43][44] studied the thermal stability of polyurethane and polyacrylates copolymers applied on the leather surface.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Polymer Films and its Blends for Leather Finishing

Agustini¹

2018

TTEFT

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Synthesis, optical, electrochemical, and thermal stability properties of poly(azomethine-urethane)s

Cited by 25 publications

References 25 publications

Thermal, fluorescence, and electrochemical characteristics of novel poly(urethane-imide)s

Thermal, fluorescence, and electrochemical characteristics of novel poly(urethane-imide)s

Hydrophobic poly(azomethine-urethane) Film for Detection of Fe<sup>3+ </sup>Ions in Aqueous Media

Behavior of Polymer Films and its Blends for Leather Finishing

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