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Journals / Kırklareli Üniversitesi Mühendislik ve Fen Bilimleri Dergisi / 2018 / Cilt: 4 - Sayı: 1

ASETİL BENZOFURAN METAKRİLAT-KO-STİREN KOPOLİMERLERİNİN SENTEZİ, TERMAL ÖZELLİKLERİ, AKTİVASYON ENERJİSİ ve REAKTİVİTE ORANLARININ HESAPLANMASI

Zülfiye İlter
Zehra ERGEN
Pages
30–48
Publication Date
2018-06-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The activation energies of the copolymers were found in the Arrhenius equation (23-30 Joules).

📌 3 Key Takeaways

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Objective & Hypothesis:Copolymers of five percentages (10, 30, 50, 70, 90) were synthesized from 2-acetyl benzofuran methacrylate (ABM) and styrene (St) in the presence of benzoyl peroxide (Bz2O2) by free radicals.
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Key Findings & Data:Copolymers were characterized by elemental analysis, 1H-NMR, FT-IR, DSC, TGA and GPC.
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Conclusion & Impact:The activation energies of the copolymers were found in the Arrhenius equation (23-30 Joules).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:benzofuran · activation energy · methacrylate

Abstract

Copolymers of five percentages (10, 30, 50, 70, 90) were synthesized from 2-acetyl benzofuran methacrylate (ABM) and styrene (St) in the presence of benzoyl peroxide (Bz2O2) by free radicals. The polymers were dissolved in dioxane and precipitated in petroleum ether. Copolymers were characterized by elemental analysis, 1H-NMR, FT-IR, DSC, TGA and GPC. Itwas observed that as the ABM ratio increased in the poly(ABM-co-St) copolymer series, the degradation temperature decreased and as the ABM ratio increased, the glass transitiontemperature also increased (127-136 °C). The monomer reactivity ratios in the copolymer were found to be between 0 and 1 at r1.r2 values from Kelen Tudos and Fineman Ross methods. The activation energies of the copolymers were found in the Arrhenius equation (23-30 Joules).

Özet

2-Asetil benzofuran metakrilat (ABM) ve stiren (St) benzoil peroksit (Bz2O2) varlığında beş farklı yüzde oranlarında % (10, 30 50, 70, 90) kopolimerler serbest radikallik yoldan sentezlendi.Polimerler, dioksanda çözülüp petrol eterinde çöktürüldü. Kopolimerler, elementel analiz, 1HNMR, FT-IR, DSC ve TGA, GPC ile karakterize edildi. Poli(ABM-ko-St) kopolimer serilerindeABM oranı arttıkça bozunma sıcaklığının düştüğü, camsı geçiş sıcaklıkları ABM oranı artıkça (127-136 0C) yükseldiği gözlendi. Kopolimerdeki monomer reaktiflik oranları. Kelen Tudos ve Fineman Ross metodlarından r1.r2 değeri 0 ve 1 aralığında bulundu. Kopolimerlerin aktivasyon enerjileri Arrhenius denkleminden (23-30 Joule) bulundu.

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Cite This Article

İlter, Z., ERGEN, Z. (2018). ASETİL BENZOFURAN METAKRİLAT-KO-STİREN KOPOLİMERLERİNİN SENTEZİ, TERMAL ÖZELLİKLERİ, AKTİVASYON ENERJİSİ ve REAKTİVİTE ORANLARININ HESAPLANMASI. Kırklareli Üniversitesi Mühendislik ve Fen Bilimleri Dergisi, Cilt: 4 - Sayı: 1, 30–48. https://ajindex.com/articles/785830

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References (1)

  1. . Soykan, C., Erol, I., Synthesis, spectral and thermal properties of homo-and copolymers of 2-[(5-methylisoxazol-3-yl)amino]-2-oxo-ethyl methacrylate with styrene and methyl methacrylate and determination of monomer reactivity ratios, Eur. Polym. J, 39, 2261-2270, 2003. [2]. Erol, I., Soykan, C., Ahmedzade, M., Monomer reactivity ratios of the 2-(3-mesityl-3-methylcyclobutyl)-2-hydroxyethyl methacrylate and styrene system from 1H NMR, J. Polym. Sci., Part A: Polym. Chem, 40, 1756-1763, 2002. [3]. Delibas, A., Soykan, C., Novel copolymers of N-(4-bromophenyl)-2-methacrylamide with 2-acrylamido-2-methyl-1-propanesulfonic acid, J. M. S.-Pure and Appl. Chem, 44(9), 969-975, 2007. [4]. İlter, Z., Coşkun, M., Erol, I., Copolymers of (2-cyclohexylidene-1,3-dioxolane-4-yl) methyl methacrylate with acrylonitrile and styrene: Synthesis, characterization, and monomer reactivity ratios, J. of Polyme Science Par A Polymer Chemistry, 39 232-331, 2001. [5]. Soykan, C., Erol, I., Radical copolymerization of N-(4-acetyl phenyl)-maleimide and styrene: Monomer reactivity ratios and thermal properties, J. of Appl. Polym. Sci, 91(2), 964-970, 2004. [6]. Fernandez-Garcia, M., Torrado, M. F., Martinez, G., Sanchez-Chaves, M., Madruga, E. L., Free radical copolymerization of 2-hydroxyethyl methacrylate with butyl methacrylate: determination of monomer reactivity ratios and glass transition temperatures, Polymer, 41(22), 8001-8008, 2000. [7]. Mageswari, S., Subramanian, K., Synthesis, characterization and study of antibacterial activity of methacrylic copolymer, Polym. Plast. Technol. Eng., 51, 1296-1302, 2012. [8]. Helaly, F.M., Essawy, H.A., Shabana, M.A., Elastic polymeric network structure for slow release drug delivery systems, Polym. Plast. Technol. Eng., 50, 438-441, 2011. [9]. Senthilkumar, H., Balaji, R., Nanjundan, S., Copolymerization of 2-(N-phthalimido)ethyl methacrylate with glycidyl methacrylate: Synthesis, characterization, and monomer reactivity ratios, J. Appl. Polym. Sci., 81(1), 96-103, 2001. [10]. Coskun, M., Demirelli, K., Ersöz, M., Synthesis, characterization, and thermal stability of homopolymer and copolymer of some 3-aryl-2-hydroxypropyl methacrylates, Polym. Plast. Technol, Eng., 41(4), 691-701, 2002. [11]. Ozawa, T., A new method of analyzing thermogravimetric data, Bull. Chem. Soc. Japan, 38(11), 1881-1886, 1965. [12]. Doyle, C.D., Kinetic analysis of thermogravimetric data, J. Appl. Polym. Sci., 5, 285-292, 1961. [13]. Doyle, C.D., Estimating iso