Micellar nanocontainers based on sterically hindered cationic phosphonium amphiphiles

被引：5
作者：
Arkhipova, D. M. [1 ]
Ermolaev, V. V. [2 ]
Milyukov, V. A. [2 ]
Valeeva, F. G. [2 ]
Gaynanova, G. A. [2 ]
Zakharova, L. Ya [2 ]
机构：
[1] Russian Acad Sci, Zelinsky Inst Organ Chem, 47 Leninsky Prosp, Moscow 119991, Russia
[2] Russian Acad Sci, Kazan Sci Ctr, Fed Res Ctr, Arbuzov Inst Organ & Phys Chem, 8 Ul Akad Arbuzova, Kazan 420088, Russia
来源：
RUSSIAN CHEMICAL BULLETIN | 2022年 / 71卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
phosphonium ionic liquids; surfactants; self-aggregation; solubilization; Orange OT; TRIPHENYL-PHOSPHONIUM; ALKYLTRIPHENYLPHOSPHONIUM BROMIDES; CATALYTIC-ACTIVITY; SELF-ORGANIZATION; SURFACTANTS; SYSTEMS; EXTRACTION; AGGREGATION; MIXTURES;
D O I：
10.1007/s11172-022-3481-7
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Self-aggregation processes in an H2O-DMF (10%) medium were studied for a homologous series of tri-tert-butyl(n-alkyl)phosphonium tetrafluoroborates (PIL-n, where n = 10, 12, 14, 16, and 18) using tensiometry and conductometry. A decrease in the critical micelle concentration from 10 to 0.4 mmol L-1 (tensiometry) was shown in the series PIL-10 > PIL-12 > PIL-14 > > PIL-16. The hydrodynamic diameter of the aggregates in solutions of phosphonium salts of various nature was shown to be in a narrow range. The thermodynamic parameters of adsorption and micelle formation were calculated from surface tension isotherms. The solubilizing ability of the phosphonium surfactants was evaluated by spectrophotometry using the hydrophobic dye Orange OT as an example. The maximum solubilization capacity in the series was demonstrated by the salt with the tetradecyl substituent (PIL-14) at the phosphorus atom.
引用
收藏
页码：804 / 811
页数：8
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