ACID-BASE PROPERTIES OF FIBROUS POLYAMPHOLYTES WITH AMINODIACETIC FUNCTIONAL GROUPS

被引：0
|
作者：
Kosandrovich, Evgenii G. [1 ]
Nesteronok, Petr, V [1 ]
Shachenkova, Larisa N. [1 ]
Soldatov, Vladimir S. [1 ]
机构：
[1] Natl Acad Sci Belarus, Inst Phys Organ Chem, 13 Surganov Str, Minsk 220072, BELARUS
来源：
DOKLADY NATSIONALNOI AKADEMII NAUK BELARUSI | 2020年 / 64卷 / 03期
关键词：
fibrous ion exchanger; sorption; potentiometric titration; acidity parameters;
D O I：
10.29235/1561-8323-2020-64-3-300-307
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Polyampholytes, containing aminodiacetic functional groups, on the base of polyacrylonitrile fiber Nitron C were obtained by the amination reaction of nitrile groups with polyamines (number of repeating units from 1 to 5) and subsequent alkylation with monochloroacetic acid. The experimental results of potentiometric titration and sorption of supporting electrolyte (KCI) ions by synthesized ion exchangers were obtained, which made it possible to determine the acidity parameters of functional groups: the presence of four types of cation exchange and two types of anion exchange groups was detected in polyampholytes, the sequence of their neutralization in the titration process was established.
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页码：300 / 307
页数：8
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