Synthesis and characterization of bio-based benzoxazines derived from thymol
Yazarlar (3)
Bilkent Üniversitesi, Türkiye
Doç. Dr. Bekir SAYGINER
Kırşehir Ahi Evran Üniversitesi, Türkiye
Bilkent Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of Applied Polymer Science (Q2) | ||
| Dergi ISSN | 0021-8995 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 05-2019 |
| Cilt / Sayı / Sayfa | 136 / 17 / 47371–0 | DOI | 10.1002/app.47371 |
| Makale Linki | https://onlinelibrary.wiley.com/doi/10.1002/app.47371 | ||
| Özet |
| In the present study, bio-based benzoxazine resins were synthesized from bio-based phenolic compound; thymol, and three different amines; ethylamine, aniline and 1,6-diaminohexane, and paraformaldehyde by solvent-free condensation reaction. The chemical structures of bio-based benzoxazines; T-ea (thymol, ethylamine), T-a (thymol, aniline), and T-dh (thymol, 1,6-diaminohexane) were characterized by proton nuclear magnetic resonance spectroscopy, Fourier transform infrared (FTIR) spectroscopy, elemental analysis, and high-resolution mass spectrometry. The curing studies of T-ea, T-a, and T-dh bio-based benzoxazines were performed by stepwise thermal treatment at 150, 175, 200, 225, and 250 degrees C. The polymerization (ring-opening and crosslinking reactions) of T-ea, T-a, and T-dh bio-based benzoxazines was investigated by FTIR spectroscopy. Cure analysis was conducted using differential scanning calorimetry and the changes in thermal properties of the T-ea, T-a, and T-dh bio-based benzoxazine resins and their corresponding thermally crosslinked polybenzoxazines PT-ea, PT-a, and PT-dh were studied by thermogravimetric analyzer. The results indicated that all the thymol-based polybenzoxazines have shown enhanced thermal stability. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47371. |
| Anahtar Kelimeler |
| Bio-based benzoxazine | Polybenzoxazines | Solventless synthesis | Thermal properties | Thymol |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| WoS | 49 |
| SCOPUS | 51 |
| Google Scholar | 55 |