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Dry Sol–Gel Condensation of p-X-C6H4SiH3 (X=H, CH3, CH3O, F, Cl) to Organosilica p-X-C6H4SiO3 Using Nickelocene

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Abstract:

The dry sol–gel reaction at toluene in ambient air atmosphere of p-X-C6H4SiH3 (X = H, CH3, CH3O, F, Cl) to p-C6H4SiO3 in high yield, catalyzed by nickelocene, is reported. The highest yield, molecular weight, polydispersity index, and TGA residue yield were obtained for p-Cl-C6H4SiH3. Some degree of unreacted Si–H bonds still remained in the gel because of steric reason. All the insoluble gels adopt an amorphous structure with a smooth surface. A plausible mechanism for the dry sol–gel reaction was suggested.

Keywords: CATALYSIS; COLLOID; CONDENSATION; DRY SOL-GEL; HYDROLYSIS; HYDROSILANE; NICKELOCENE; ORGANOSILICA; PARA-SUBSTITUTED PHENYLSILANE

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2006.017

Publication date: 2006-11-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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