Abstract
The acid-hydrolysis of a bismethyldiethoxysilylated para-phenylene-bridged derivative, (EtO)2MeSi(CH2)3NHCONH(C6H4)NHCONH(CH2)3SiMe(OEt)2, with urea groups has been performed in pure aqueous medium. The scanning electron microscopy (SEM) analysis of the resulting insoluble solid revealed plate-like forms. A lamellar structure was determined from the powder X-ray diffraction (PXRD) studies with a sharp peak at 21.1 Å. The solid state CP-MAS NMR spectra (29Si and 13C) of the bridged siloxane hybrid exhibit a moderately condensed material with complete preservation of the Si–C bonds throughout the hybrid network.