| 释义 |
polyelectrolyte Chem.|pɒlɪɪˈlɛktrəlaɪt|
[f. poly- + electrolyte.]
A substance which consists of large, usu. polymeric molecules containing several ionizable groups.
1947Jrnl. Polymer Sci. II. 12 By using salts of quaternary nitrogen compounds, polyelectrolytes can be made which are soluble in organic solvents. 1959Times 3 Dec. 9/4 There are water softeners using poly-electrolyte membranes with an output of 50 cubic feet an hour. 1964Biophysical Jrnl. IV. i. Suppl. 10 Many important plant products such as the pectic acids of fruit jellies and alginic acid of seaweed are typical polyelectrolytes. 1968New Scientist 26 Dec. 703/3 Pure poly-electrolytes also promise to be valuable additives in many foodstuffs and beverages. 1973Nature 2 Nov. 34/1 Polyelectrolytes are increasingly being used as flocculants for electrostatically stabilised dispersions of colloidal particles.
Hence ˌpolyelectroˈlytic a.
1948Science 19 Nov. 548/2 We are thus led to the assumption that the high viscosity of polyelectrolytic solutions and its concentration dependence are due to the presence of the high charge density at the polyions. 1958New Scientist 29 May 75/1 Some of the defence mechanisms of the living body are polyelectrolytic in nature. |