| 释义 |
lyophilic, a. Physical Chem.|laɪəˈfɪlɪk|
[f. lyophile a. + -ic.]
Of a dispersed colloidal phase: having an affinity for the dispersion medium; not readily precipitated out by small quantities of electrolyte. Also applied to sols containing such a phase, which generally have a lower surface tension and a higher viscosity than the dispersion medium and which give gels on evaporation or cooling.
1911[see lyophobic a.]. 1938H. L. Hind Brewing I. vi. 111 The complex carbohydrates and proteins belong to the class of lyophilic colloids, which is much the more important class in brewing. 1940Glasstone Text-bk. Physical Chem. xiv. 1210 Substances which most readily form lyophilic sols are those of high molecular weight; each particle, therefore, consists of a small number of molecules and in some instances possibly of only one large molecule. 1959[see lyophobic a.]. 1969G. D. Parfitt Dispersion of Powders in Liquids iii. 81 Solutions of macromolecules and association colloids are of the lyophilic type and form spontaneously when the components are brought into contact. |
