Synthesis and characterization of a new conjugated polymer containing bithiazole group and its thermal decomposition kinetics

Kurt, Adnan; Andan, Hacer; Koca, Murat

doi:10.20450/mjcce.2020.2025

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…The clear observability of characteristic bands in the amide monomer and the absence of alkene bands in the monomers show that our newly synthesized polymer has formed and the literature also support this allegation (Coşkun et al, 2002;Kurt et al, 2019a). Actually, the FT-IR spectrum is the first spectroscopic measurement method that shows us whether newly synthesized materials are formed or not, and has been used in the literature for many years (Turan & Şekerci, 2009;Temüz, 2017;Coşkun et al, 2019;Kurt et al, 2020).…”

Section: Spectroscopic Characterization Of Lim-co-npa Copolymersupporting

confidence: 60%

Synthesis, Spectroscopic and Thermal Characterization of a New Sustainable Polymer

Çankaya

Turan

2021

Gazi University Journal of Science Part A: Engineering and Innovation

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D-limonene Sustainable Polymer Copolymer Synthesis and Characterization Thermal StabilityCopolymerization is a very important method in the synthesis of products having the physical and chemical properties sought in industrial sense. In this paper, the copolymerization of N-(4-nitrophenyl) acrylamide monomer with D-limonene was carried out and LIM-co-NPA copolymer was synthesized by free radical chain polymerization reaction. The structure of sustainable copolymer of limonene was chemically characterized by FT-IR, 1 H-NMR spectroscopic techniques. In addition, thermal stability of copolymer investigated by TGA/DTG/DTA simultaneous thermal analysis methods. The spectroscopic results are compatible with the amide or limonene polymers synthesized in the literature. From the important thermal results of the sustainable copolymer, it has been found that the initial decomposition temperature is 226°C, and the maximum decomposition temperatures is 329°C, glass transition temperature at 261°C and crystallization temperature at 340°C. It can be said that this promising sustainable copolymer is suitable for other mechanical, physical and biological study and research fields.

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Section: Spectroscopic Characterization Of Lim-co-npa Copolymersupporting

confidence: 60%

Synthesis, Spectroscopic and Thermal Characterization of a New Sustainable Polymer

Çankaya

Turan

2021

Gazi University Journal of Science Part A: Engineering and Innovation

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“…Similar results for thermal degradation of heterocyclic polymers have been reported in our previous publications and also by different researchers. [34][35][36][37][38][39][40][41][42] For example, Kurt et al 37 reported the degradation temperatures of an isocoumarin derived polymer changed in a positive direction, which increased 256.6 °C to 286.1 °C by increasing heating rate from 5 to 20 °C/min. Meng and friends investigated the thermal degradation kinetics of a polyimide polymer containing 2,6-benzobisoxwwwwazole units and reported the onset decomposition temperatures increased with increase of heating rates.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization and Thermal Degradation Kinetics of a New Pyrazole Derived Methacrylate Polymer, Poly(1,3-Diphenyl-1H-Pyrazol-5-Yl Methacrylate)

Kurt

Koca²

2022

ACSi

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Since the behavior and properties of macromolecular pyrazole derived polymers differ from their small molecules, such polymers are in the class of well-defined functional polymers due to the fact that the pyrazole ring contains two π-bonds as well as two hetero atoms in its structure, and this feature makes them important in the fields of scientific and technological applications. In present study, therefore, we synthesized a new pyrazole derived methacrylate monomer, 1,3-diphenyl-1H-pyrazol-5-yl methacrylate, from the reaction of 1,3-diphenyl-5-pyrazolone with methacryloyl chloride in the presence of triethylamine. After that, its homopolymerization was carried out by free radical polymerization method at 60 °C initiated with benzoyl peroxide. Spectral characterizations were achieved by 1H-NMR and FTIR spectroscopies. The kinetics of thermal degradation of the new polymer, poly(1,3-diphenyl-1H-pyrazol-5-yl methacrylate), poly(DPPMA), were investigated by thermogravimetric analysis (TGA) at different heating rates. The initial decomposition temperature of the polymer changed from 216.3 °C to 243.5 °C depending on the increasing heating rate. The thermal decomposition activation energies in a conversion range of 7–19% were 79.45 kJ/mol and 81.56 kJ/mol by the Flynn– Wall–Ozawa and Kissinger methods, respectively. Thermodegradation mechanism of the poly(DPPMA) were investigated in detail by using different kinetic methods available in the literature such as Coats-Redfern, Tang, Madhusudanan and Van Krevelen. Among all these methods, the best result was obtained for Coats-Redfern method (E = 90.93 kJ/mol) at the optimum heating rate of 15 °C/min for D1 mechanism that is a one-dimensional diffusion type deceleration mechanism.

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Synthesis and characterization of a new conjugated polymer containing bithiazole group and its thermal decomposition kinetics

Cited by 2 publications

References 25 publications

Synthesis, Spectroscopic and Thermal Characterization of a New Sustainable Polymer

Synthesis, Spectroscopic and Thermal Characterization of a New Sustainable Polymer

Synthesis, Characterization and Thermal Degradation Kinetics of a New Pyrazole Derived Methacrylate Polymer, Poly(1,3-Diphenyl-1H-Pyrazol-5-Yl Methacrylate)

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