POLYANION-POLYCATION INTERACTIONS IN CONCENTRATED AQUEOUS SYSTEMS .1. INTERACTIONS BETWEEN POLY(ETHYLENE IMINE) AND POLY(ACRYLIC ACID) IN DEPENDENCE ON POLYMER CONCENTRATION

被引：9

作者：

KOTZ, J ^{[1
]}

KOSMELLA, S ^{[1
]}

EBERT, A ^{[1
]}

机构：

[1] FRAUNHOFER EINRICHTUNG ANGEW POLYMERFORSCH TELTOW,O-1530 TELTOW,GERMANY

来源：

ACTA POLYMERICA | 1992年 / 43卷 / 06期

关键词：

D O I：

10.1002/actp.1992.010430604

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyanion-polycation interactions between the free base poly(ethylene imine) and poly(acrylic acid, sodium salt) were investigated in dependence on polymer concentration of the components. At very low polymer concentration between 0.003 % and 0.15 % we observed a small range of phase separation, because of predominantly non-Coulombic interactions, determined by using a method combination, consisting of potentiometry, conductometry and turbidimetry. By increasing the polymer concentration no phenomena of phase separation could be observed but a significant viscosity increase above the level of the components in dependence on the molar ratio of cationic to anionic functional groups as well as the molecular weight of the components. The results of NMR spectroscopic investigations in combination with density measurements are discussed with regard to a model of interaction at high concentrations.

引用

页码：313 / 319

页数：7

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