Long-Chain Alkylsilane-Modified Porous Silica Beads as GPC Packings

He, Qi-Jian; Li, Xiuzhen; Meng, Diya

doi:10.1080/01483918208067583

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Surfaces are produced with hydrophobicity extent depending on the type, size, and concentration of the organic groups [1,2,9], whose concentration also depends on the original surface silanols' concentration. This modification finds use in reducing agglomeration of silica nanoparticles [10], in chromatographic stationary phases [11][12][13], in purification of water [14], and in improving fragility of optical fibres that are now used in the telecommunication super highway as well as in surgical and diagnostic tools in hospitals. The consequent hydrophobicity is used in preventing corrosion of steel and magnesium articles without compromising their metal strength [15].…”

Section: Introductionmentioning

confidence: 99%

Interaction of Ethanol Vapour with Silane-Modified Surface of Corning Porous Glass CPG-10

Nadiye-Tabbiruka

2012

ISRN Physical Chemistry

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The interaction of ethanol vapour at 293 K with modified Corning controlled porous glass (CPG-10) samples of various pre-silylation is reported. Ethanol adsorption on CPG-10 was greatly reduced by silylation to extents largely depending on the silylation extent, type of silane used, and on the concentration and accessibility of residual silanols. The obtained adsorption isotherms, BET surface areas, as well as the observed changes at the various stages during the sorption particularly in the capillary condensation region also showed similar dependence. In the capillary condensation region, in the case of the dimethyl dichlorosilane-modified sample, hysteresis type was changed from H3 to H1. On the triethyl chlorosilane-modified sample an unexpected suppression of hysteresis effects occurred with a consequent transformation of type IV to type II adsorption isotherm.

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