Sentezlenmiş MSG ve Nano-Alümina ile Üretilen Polyester Kompozitlerin Termofiziksel Özelliklerinin İncelenmesi

Year 2022, Issue: 34, 95 - 99, 31.03.2022

Hakan Şahal , Ercan Aydoğmuş

https://doi.org/10.31590/ejosat.1072831

Cited By: 9

Abstract

Bu çalışmada yeni bir bileşik olan 4-[(E)-(5-Bromo-2-hidroksi-3-metoksibenziliden)amino]-N karbamimidoilbenzensülfonamid (MSG) sentezi gerçekleştirilmiştir. MSG'nin yapıları, Fourier transform kızılötesi spektroskopisi (FTIR) ve proton nükleer manyetik rezonans spektroskopisi (NMR) gibi yöntemler kullanılarak karakterize edilmiştir. Deneysel çalışmalarda, sentezlenen MSG, ağırlıkça % 1 ve % 2 doymamış polyesterlerle takviye edilmiştir. Ayrıca, polyester kompozitleri üretmek için ağırlıkça % 1 ve % 2 alümina nanopartiküller, ağırlıkça % 1.5 metil etil keton peroksit (MEKP) ve ağırlıkça % 0.5 kobalt oktoat (Co Oc) kullanılmıştır. Alümina nanoparçacıkları üretilen polyester kompozitin yoğunluğunu arttırmasına rağmen, MSG takviyesi bunu azaltmıştır. Nano-alümina, polyester kompozitin Shore D sertliğini yükseltirken, sentezlenen MSG onu düşürmüştür. Hem nano-alümina hem de MSG takviyesi, polyester kompozitin yüzey morfolojisindeki gözenekliliği arttırmıştır. Ayrıca nano-alümina takviyesi, polyester kompozitin aktivasyon enerjisini yükseltmiş ve MSG ise bunu azaltmıştır. Diğer bir deyişle, alumina takviyesi aktivasyon enerjisini yükselttiği için polyester kompozitin termal kararlılığı da yükselmiştir.

Keywords

Alümina, Sentez, MSG, Polyester kompozit, Karakterizasyon

Investigation of Thermophysical Properties of Polyester Composites Produced with Synthesized MSG and Nano-Alumina

Abstract

In this study, synthesis of a new compound, 4-[(E)-(5-Bromo-2-hydroxy-3-methoxybenzylidene) amino]-N carbamimidoylbenzenesulfonamide (MSG) has been carried out. The structures of MSG are characterized using spectroscopic methods such as Fourier transform infrared spectroscopy (FTIR), and proton nuclear magnetic resonance spectroscopy (NMR). In experimental studies, synthesized MSG has been reinforced with 1 wt.% and 2 wt.% unsaturated polyesters. Besides, 1 wt.% and 2 wt.% alumina nanoparticles, 1.5 wt.% methyl ethyl ketone peroxide (MEKP), and 0.5 wt.% cobalt octoate (Co Oc) were used to produce polyester composites. Although alumina nanoparticles increased the density of the produced polyester composite, MSG supplementation decreased it. While nano-alumina raised Shore D hardness of the polyester composite, synthesized MSG went down it. Both nano-alumina and MSG reinforcement have been increased the porosity in the surface morphology of the polyester composite. Also, nano-alumina reinforcement raised the activation energy of the polyester composite and MSG decreased it. In other words, since the alumina filler raises the activation energy, the thermal stability of the polyester composite has gone up.

Keywords

Alumina, Synthesis, MSG, Polyester composite, Characterization

References

• A. D. Naik, G. Fontaine, S. Bellayer, and S. Bourbigot, Crossing the traditional boundaries: salen-based schiff bases for thermal protective applications, ACS Applied Materials & Interfaces, 7, 21208–21217, 2015.
• A. D. Naik, G. Fontaine, S. Bellayer, and S. Bourbigot, Salen based Schiff bases to flame retard thermoplastic polyurethane mimicking operational strategies of thermosetting resin, RSC Advances, 5, 48224–48235, 2015.
• D. Zhao, J. Wang, X.L Wang, and Y. Z. Wang, Highly thermostable and durably flame-retardant unsaturated polyester modified by a novel polymeric flame retardant containing Schiff base and spirocyclic structures, Chemical Engineering Journal, 344, 419–430, 2018.
• F. He, L. Tian, W. Xie, et al., Highly efficient blue organic light-emitting devices based on improved guest/host combination, Journal of Physical Chemistry C, 112(31), 12024–12029, 2008.
• M. Grigoras, and C. O. Catanescu, Imine oligomers and polymers, Journal of Macromolecular Science: Part C: Polymer Reviews, 44(2), 1–37, 2004.
• C. W. Thornber, Isosterism and molecular modification in drug design, Chemical Society Reviews, 8, 563-580, 1979.
• R. C. Ogden, and C. W. Flexner, Protease Inhibitors In AIDS Therapy, Marcel Dekker, New York, Basel, 2001.
• A. Scozzafava, and C. T. Supuran, Carbonic Anhydrase and Matrix Metalloproteinase Inhibitors: Sulfonylated Amino Acid Hydroxamates with MMP Inhibitory Properties Act as Efficient Inhibitors of CA Isozymes I, II, and IV, and N-Hydroxysulfonamides Inhibit Both These Zinc Enzymes, Journal of Medicinal Chemistry, 43, 3677-3687, 2000.
• H. Şahal, M. Pişkin, G. A. Organ, Ö. F. Öztürk, M. Kaya, E. Canpolat, Zinc(II) phthalocyanine containing Schiff base containing sulfonamide: Synthesis, characterization, photophysical, and photochemical properties, Journal of Coordination Chemistry, 71, 3763–3775, 2018.
• M. Pişkin, E. Canpolat, and Ö. F. Öztürk, The new zinc phthalocyanine having high singlet oxygen quantum yield substituted with new benzenesulfonamide derivative groups containing schiff base, Journal of Molecular Structure, 1202, 127181, 2020.
• E. Aydoğmuş, H. Arslanoğlu, and M. Dağ, Production of waste polyethylene terephthalate reinforced biocomposite with RSM design and evaluation of thermophysical properties by ANN, Journal of Building Engineering, 44, 103337, 2021.
• R. Orhan, E. Aydoğmuş, S. Topuz, and H. Arslanoğlu, Investigation of thermo-mechanical characteristics of borax reinforced polyester composites, Journal of Building Engineering, 42, 103051, 2021.
• E. Aydoğmuş, and H. Arslanoğlu, Kinetics of thermal decomposition of the polyester nanocomposites, Petroleum Science and Technology, 39(13–14), 484–500, 2021.
• C. Yanen, and E. Aydoğmuş, Characterization of Thermo-Physical Properties of Nanoparticle Reinforced the Polyester Nanocomposite, Dicle University Journal of the Institute of Natural and Applied Science, 10(2), 121–132, 2021.