Design and characterization of amino and chloro functionalized rhombohedral silsesquioxanes
Yükleniyor...
Dosyalar
Tarih
2005
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Turkish Journal of Chemistry
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Öz: Başlık (İngilizce): Öz (İngilizce): A more rapid and a versatile synthetic approach for the preparation of polyhedral silsesquioxanes (POSS) by hydrolytic condensation of organosilicon monomers in the presence of a Pt catalyst was studied. The structural properties of POSS molecules were determined by X-ray powder diffraction analysis, yielding a rhombohedral unit cell with a = 11,52796A and a = 94,9754° for octaaminopropyl-POSS, and a rhombohedral unit cell with a = 11,51421A, a = 96,7214° for octachloropropyl-POSS. The activation energies were found to be 64.8, and 89.1 kJ/mol for octaaminopropyl-POSS and octachloropropyl-POSS, respectively. The products were also characterized by Fourier transform infrared spectroscopy, 1H and 13C nuclear magnetic resonance, differential thermal analysis, and thermogravimetric analysis
Açıklama
Anahtar Kelimeler
Mühendislik, Kimya
Kaynak
Turkish Journal of Chemistry
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
29
Sayı
4
Künye
Ahmet G., TURGAY S., HALİL İBRAHİM A. (2005). Design and characterization of amino and chloro functionalized rhombohedral silsesquioxanes, Turkish Journal of Chemistry, İnönü Üniversitesi, Malatya.
