Polyhedral oligomeric silsesquioxane-based hybrid networks obtained via thiol-epoxy click chemistry
Yazarlar (4)
Dr. Öğr. Üyesi Seda BEKİN AÇAR Yalova Üniversitesi, Türkiye
Mustafa Özçelik Yalova Üniversitesi
Tamer Uyar
İhsan Doğramacı Bilkent Üniversitesi, Türkiye
İhsan Doğramacı Bilkent Üniversitesi, Türkiye
Prof. Dr. Mehmet Atilla TAŞDELEN Yalova Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Iranian Polymer Journal (Q3) | ||
| Dergi ISSN | 1026-1265 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 06-2017 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 02-05-2017 |
| Cilt / Sayı / Sayfa | 26 / 6 / 405–411 | DOI | 10.1007/s13726-017-0529-x |
| Makale Linki | http://link.springer.com/10.1007/s13726-017-0529-x | ||
| Özet |
| A series of hybrid networks based on polyhedral oligomeric silsesquioxane (POSS) were prepared by thiolepoxy click reaction using commercially available octakisglycidyl-POSS (G-POSS), trimethylolpropane triglycidyl ether, and trimethylolpropane tris(3-mercaptopropionate) as monomers. The click reaction was simply catalyzed by lithium hydroxide which proceeded readily at ambient conditions in very good yields. The incorporation of G-POSS into the network was clearly determined by transmission electron microscopy, FTIR, and H-1-NMR spectroscopy techniques performed with a model study using 1-butane thiol and G-POSS molecules. The homogeneous distribution of G-POSS up to 5 wt% in the hybrid network was apparently confirmed by morphological investigations. By increasing G-POSS content higher than 5 wt%, the heterogeneous dispersion of G-POSS was determined from the tensile strength measurements. The significant decrease in tensile strength was possible due to the agglomeration of G-POSS. On the other hand, thermal properties of hybrid networks were compared together by thermogravimetric analyses, where all samples exhibited one-step degradation in the range of 220-500 degrees C. The thermal decomposition of hybrid network led to complete degradation of the organic part and favored the formation of stable carbonaceous and inorganic residues as char. Thus, the char yields of hybrid networks were increased to 6.2, 7.8, 10.1, 12.7, and 15.1% by G-POSS loadings from 0 to 15 wt%. This improvement was also a proof of the incorporation of G-POSS into the hybrid networks that resulted in high heat-resistant POSS-based hybrid networks compared to a sample without G-POSS. |
| Anahtar Kelimeler |
| Click chemistry | Hybrid networks | Polyhedral oligomeric silsesquioxanes | Thermosets | Thiol-epoxy reaction |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları |