Cross Linkable Epoxidized Maleinated Castor Oil A Renewable Resin Alternative to Unsaturated Polyesters
Yazarlar (5)
Prof. Dr. Yeşim Müge Şahin İstanbul Arel Üniversitesi, Türkiye
Prof. Dr. Gökhan Çaylı İstanbul Üniversitesi, Türkiye
Jesmi Çavuşoğlu
Doç. Dr. Emre TEKAY Yalova Üniversitesi, Türkiye
Prof. Dr. Sinan ŞEN Yalova Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | International Journal of Polymer Science | ||
| Dergi ISSN | 1687-9422 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2016 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-01-2016 |
| Cilt / Sayı / Sayfa | 2016 / 0 / 1–7 | DOI | 10.1155/2016/5781035 |
| Makale Linki | http://www.hindawi.com/journals/ijps/2016/5781035/ | ||
| UAK Araştırma Alanları |
Polimer Bilimi ve Teknolojileri
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| Özet |
| As an alternative resin to conventional synthetic unsaturated polyesters (UPEs), epoxidized maleinated castor oil (EMACO) was synthesized in two steps. For this purpose, castor oil was reacted with maleic anhydride at 70°C to obtain maleinated castor oil (MACO). Then, epoxidation of MACO was carried out by using a mixture of formic acid and hydrogen peroxide at 0–5°C. Then, the free carboxyl groups of the synthesized EMACO were further reacted with free epoxide groups of EMACO at 90°C. At the end of the reaction, an unsaturated polyester precursor-prepolymer was obtained (P-EMACO). FTIR and1H NMR spectroscopic techniques were used to characterize the monomers synthesized. The P-EMACO was then mixed with styrene and cross-linked in the presence of AIBN at 50°C. Thermal and mechanical properties of the final cross-linked product were investigated by thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA) techniques. The degradation onset temperature of the material at which cross-linked X-EMACO loses 5% of its weight was found to be 209°C. Its dynamicTgand storage modulus at 25°C were determined as 72°C and 1.08 GPa, respectively. These results are higher than some of the different oil based polymers reported in the literature. |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları |