Colloid-Chemical and Rheological Properties of Interfacial Adsorption Layers Formed by Water-Soluble and Poorly Soluble Block Copolymers of Ethylene Oxide and Propylene Oxide

被引：0

作者：

Gritskova, I. A. ^{[1
]}

Kovtun, I. D. ^{[1
,2
]}

Romanenko, G. A. ^{[1
]}

Shulgin, A. M. ^{[1
,3
]}

Levachev, S. M. ^{[4
]}

Kharlov, A. E. ^{[4
]}

Chvalun, S. N. ^{[1
]}

机构：

[1] Russian Technol Univ, Lomonosov Inst Fine Chem Technol, MIREA, Moscow 119571, Russia

[2] Russian Acad Sci, Enikolopov Inst Synthet Polymer Mat, Moscow 117393, Russia

[3] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia

[4] Lomonosov Moscow State Univ, Fac Chem, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2024年 / 98卷 / 13期

关键词：

surfactant properties; stability; interfacial adsorption layer;

D O I：

10.1134/S003602442470242X

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 colloid-chemical properties of water-soluble and poorly soluble poly(ethylene oxide) and poly(propylene oxide) block copolymers (pluronics), as well as the rheological properties of interfacial adsorption layers (IALs) formed by them and the polymer generated during polymerization initiation on the particle surface, were studied. The temperature, surfactant concentration, and polymer effects on the effective elastic modulus, determined during the lateral deformation of IALs, were evaluated. The strongest interfacial layers are formed by the poorly water-soluble pluronic, which contains a hydrophilic polyoxyethylene block surrounded by two hydrophobic polyoxypropylene blocks. The high strength of the interfacial adsorption layer on the particle surface affords polymer suspensions with high (up to 33%) polymer contents and narrow particle size distributions.

引用

页码：3185 / 3192

页数：8

共 38 条

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