Výsledky vyhledávání - "Bruno Guidotti"

Modification of SiO2 Surfaces by Reaction with Trialkoxymethanes and Triphenoxymethane

Autor: Bruno Guidotti, Walter Caseri, Ulrich W. Suter

Publikováno v: Langmuir. 12:4391-4394

SiO2 (Aerosil) reacts with trialkoxymethanes and triaryloxymethanes (orthoformates) of the formula HC(OR)3, R = CH3, C2H5, n-C4H9, and C6H5. The modified surface was analyzed with IR and solid-state NMR spectroscopy and thermogravimetric analysis (TG

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::753ee388c1e63c13de29b21eecf74bcb
https://doi.org/10.1021/la9515130

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Removal of OH groups from silica surfaces under mild conditions

Autor: Walter Caseri, Bruno Guidotti, Peter Neuenschwander, Ulrich W. Suter

Publikováno v: Composite Interfaces. 1:429-437

Hydroxyl groups on silica surfaces can be removed partially or completely under mild conditions, including washing of silica with dry hexane, prolonged storage over phosphorous pentoxide, chemical reaction with phenyl isocyanate, ethyl isocyanate or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2e90e24888995b62546830c98fb4178
https://doi.org/10.1163/156855493x00275

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Modification of SiO2 Surfaces by Reaction with Acetals, Ketals, Orthoesters, and Orthocarbonates

Autor: Walter Caseri, Erwin Herzog, Ulrich W. Suter, Felix Bangerter, Bruno Guidotti

Publikováno v: Journal of colloid and interface science. 191(1)

SiO2 was treated with compounds of the type C(OR)4 (orthocarbonates), R'C(OR)3 (orthoesters), and R'R"C(OR)2 (acetals and ketals) in CCl4 under reflux. The resulting modified surfaces were analyzed with IR, 1 H NMR, and 13 C NMR spectroscopy, and TGA

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfb6ffff002130c2c8646a7ed7a2c286
https://pubmed.ncbi.nlm.nih.gov/9241221

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