Results 51 to 60 of about 391 (161)

Mechanically Strengthened Aerogels through Multiscale, Multicompositional, and Multidimensional Approaches: A Review

open access: yesAdvanced Materials, Volume 36, Issue 18, May 2, 2024.
It has already been ≈90 years since the first development of aerogels, and many researchers have devoted tremendous efforts to enhance their mechanical properties, which is yet completely achieved. This review presents multiscale, multicompositional and multidimensional strategies, resulting from flexible synthesis techniques for 0D–1D, 0D–2D, 1D–2D ...
Vinayak G. Parale   +6 more
wiley   +1 more source

The Synthesis and Reactivity of Mesoporous and Surface-Rough Vinyl-Containing ORMOSIL Nanoparticles

open access: yesColloids and Interfaces
Silica nanoparticles synthesized solely from organosilanes naturally possess a greater number of organic functionalities than silica nanoparticles surface-modified with organosilanes.
Nathan I. Walton   +3 more
doaj   +1 more source

Surface structure and reactivity study of phosphotungstic acid-nitrogenated ormosils [PDF]

open access: yesJournal of Sol-Gel Science and Technology, 2013
Supramolecular interactions between nitrogenated groups in hybrid ormosils bearing phosphotungstate nanocatalyst were used to tune the photocatalytical activity of these class-II hybrid materials obtained through sol-gel chemistry. Surface chemistry and morphology of the materials was studied by scanning electron microscopy, atomic force microscopy, X ...
Ferreira Neto, Elias P.   +9 more
openaire   +2 more sources

A Biohybrid Catalyst for Cross-Coupling Reactions That Contains Pd/P.yeei@ORMOSIL

open access: yesInorganics
This study demonstrates the feasibility of encapsulating Paracoccus yeei VKM B-3302 cells, which contain palladium nanoparticles, within an organosilicon matrix synthesized using the sol–gel method.
Olga A. Kamanina   +5 more
doaj   +1 more source

Estudio por espectroscopía infrarroja de la reacción de hidrólisis y policondensación del IEOS en presencia de PDMS

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2001
In this work, we have studied, by FT-IR Spectroscopy, the influence of the molecular weight of organic polymers (polydimethylsiloxane, PDMS) in the hydrolysis and polycondensation reactions of tetraethylortosilicate (TEOS) in acid medium.
Velasco, M. J., Rubio, J., Oteo, J. L.
doaj  

Seguimiento por espectroscopia infrarroja (FT-IR) de la copolimerización de TEOS (tetraetilortosilicato) y PDMS (polidimetilsiloxano) en presencia de tbt (tetrabutiltitanio)

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2004
Hybrid materials have been prepared in this work through the reactions of Si and Ti alkoxides (TEOS and TBT, respectively) and polydimethil siloxane (PDMS).
Téllez, L.   +3 more
doaj  

Integrated Experimental–Theoretical and Data-Driven Multiphysics Analysis of Material Properties in Coatings, Pretreatments, Interfaces, and Artificial Intelligence-Assisted Reliability for Medical and Biomedical Devices

open access: yesJournal of Experimental and Theoretical Analyses
Surface engineering strongly influences the performance, reliability, and safety of medical and biomedical devices, yet failures often originate at interfaces rather than in bulk materials alone. This review addresses the fragmented evidence base linking
Marshall Shuai Yang, Chengqian Xian
doaj   +1 more source

Organically Modified Silicates (Ormosils) as Adhesives for Siliceous Surfaces [PDF]

open access: yesThe Journal of Adhesion, 1987
Abstract Adhesion to glass surfaces still may be a problem under “heavy duty” conditions such as temperature and moisture or both. In many cases the problem may be overcome by use of adhesion promoters such as reactive silanes. These silanes remove water films from the glass surface by chemical reaction, are able to form chemical bonds to the glass ...
openaire   +1 more source

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