USE OF THE REORDERING RESOLVATION OF ALKYL-MODIFIED SILICA TO CHARACTERIZE THE MICROSCOPIC HETEROGENEITY OF SILICA VIA LIQUID-CHROMATOGRAPHY

被引：9

作者：

GILPIN, RK

WU, L

机构：

[1] Department of Chemistry, Kent State University, Kent

来源：

JOURNAL OF CHROMATOGRAPHY | 1991年 / 556卷 / 1-2期

关键词：

D O I：

10.1016/S0021-9673(01)96238-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The microscopic heterogeneity of the surface silanols of silica was studied by liquid chromatography. By examining thermally induced reordering/resolvation of bonded alkyl chains (i.e., octyl groups) in contact with water, it is possible to deduce fundamental information about differences in the microscopic surface structure of silica prepared by different manufacturing processes. In addition, deuterium exchange-mass spectrometry was used to measure the bulk silanol concentration on the same silica.

引用

页码：415 / 424

页数：10

共 27 条

[1]

[Anonymous], 1979, CHEM SILICA

[2] DETERMINATION OF THE CONCENTRATION OF SILANOL GROUPS BY A CHEMICAL-REACTION WITH METHYLLITHIUM AND GC MEASUREMENTS OF EVOLVED METHANE [J].