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Inne
High-yield synthesis of amido-functionalized polyoctahedral oligomeric silsesquioxanes by using acyl chlorides.
Autorzy
Rok wydania
2014
Czasopismo
Numer woluminu
20
Strony
15966-15974
DOI
10.1002/chem.201404153
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Homosubstituted amido‐functionalized polyoctahedral oligomeric silsesquioxanes (POSS) have been synthesized by using acyl chlorides in high yields (ca. 95 %). The method proved to be superior over “conventional” syntheses applying carboxylic acids or acid anhydrides, which are much less efficient (ca. 60 % yield). A palette of aryl and alkyl groups has been used as side‐chains. The structures of the resulting amide‐POSS are supported by multinuclear 1H, 13C, 29Si NMR and FTIR spectroscopy and their full conversion into octasubstituted derivatives was confirmed using mass spectrometry. We also demonstrate that the functionalized silsesquioxanes with bulky organic side‐chains attached to cubic siloxane core form spherical‐like, well‐separated nanoparticles with a size of approximately 5 nm.
Słowa kluczowe
nanoparticles, nanostructures, organic-inorganic composities, solid-state structures, silicon
Adres publiczny
http://dx.doi.org/10.1002/chem.201404153
Strona internetowa wydawcy
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