Synthesis, Characterization, and Reactivity of Layered Inorganic-Organic Nanocomposites Based on 2:1 Trioctahedral Phyllosilicates

Chemistry of Materials

Volumn 9, Issue 5, 1997, Pages 1071-1073

  Burkett, Sandra L ^a   Press, Anna ^a   Mann, Stephen ^a  

^a UNIVERSITY OF BATH   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0011444643     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm9700615     Document Type: Article

References (13)

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2. Aranda, P.; Ruiz-Hitzky, E. Chem. Mater. 1992, 4, 1395.
3. Fukushima, Y.; Tani, M. J. Chem. Soc., Chem. Commun. 1995, 241.
4. In a typical preparation, 16.5 mmol (3.40 g) of magnesium chloride hexahydrate was dissolved in 100 mL of methanol and 22.0 mmol of the organosiloxane species (Aldrich, Mg/Si molar ratio = 0.75) was added. The cloudy suspension, which was obtained upon addition of 400 mL of 0.05 M aqueous sodium hydroxide, was stirred overnight at room temperature, and the resulting finely divided white precipitates collected by vacuum filtration or centrifugation and repeatedly washed with water.
5. JCPDS card 13-0558.
6. Carrado, K. A.; Thiyagarajan, P.; Winans, R. E.; Botto, R. E. Inorg. Chem. 1991, 30, 794.
7. MacEwan, D. M. C. In The X-ray Identification and Crystal Structures of Clay Minerals; Brown, G., Ed.; Mineralogical Society: London, 1961; Chapter 4.
8. Ishida, H.; Chiang, C. H.; Koenig, J. L. Polymer 1982, 23, 251.
9. 13C NMR chemical shift values (ppm); Mg-PTES, 127.8, 130.5, 134.1; Mg-TTMS, 13.0, ∼25 (sh), 28.5; Mg-ATES, 13.7, 23.5, 43.4. No resonance corresponding to the Si-C carbon of Mg-PTES (expected at approximately 131 ppm) was observed; this may be due to inefficient CP and a long relaxation time for this carbon, or broad neighboring peaks obscuring this resonance.
10. Kermarec, M.; Carriat, J. Y.; Burattin, P.; Che, M.; Decarreau, A. J. Phys. Chem. 1994, 98, 12008.
11. Carrado, K. A. Ind. Eng. Chem. Res. 1992, 31, 1654.
12. Sims, S. D.; Burkett, S. L.; Mann, S., manuscript in preparation.
13. - to Au(0) was apparent from the change of color of the solution from yellow to colorless and the change of color of the suspended solid from white to light brown. The products were filtered, washed with methanol and water, and dried in air. Although the observations suggest that Au(III) reduction occurs in the vicinity of the mercaptopropyl functionalities, reaction with poly(mercaptoorgano) siloxane byproducts cannot be ruled out.