COLLOID PARTICLE CHARGE DETERMINATION VIA THE STRUCTURE FACTOR S(Q)

被引：19

作者：

VERSMOLD, H ^{[1
]}

WITTIG, U ^{[1
]}

HARTL, W ^{[1
]}

机构：

[1] RHEIN WESTFAL TH AACHEN,INST PHYS CHEM,W-5100 AACHEN,GERMANY

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 24期

关键词：

D O I：

10.1021/j100177a060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The dependence of the structure factor S(Q) of fluidlike ordered polymer colloid suspensions on ionic strength is investigated. It is found that a given amount of NaCl influences the structure much more than the same amount of NaOH. This behavior is explained in terms of an ion-exchange mechanism that takes place with NaOH but not with NaCl. By comparing the structure factor S(Q) of samples titrated with NaOH with the S(Q) of samples titrated with NaCl, one can determine the charge of the latex particles, if it is assumed that equal structure factors are due to equal ionic strength in corresponding suspensions.

引用

页码：9937 / 9940

页数：4

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