Adsorption of the linear poly(ethyleneimine) precursor poly(2-ethyl-2-oxazoline) and sodium dodecyl sulfate mixtures at the air-water interface: the impact of modification of the poly(ethyleneimine) functionality.
Adsorption of the linear poly(ethyleneimine) precursor poly(2-ethyl-2-oxazoline) and sodium dodecyl sulfate mixtures at the air-water interface: the impact of modification of the poly(ethyleneimine) functionality.
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线性聚(乙烯亚胺)前体聚(2-乙基-2-恶唑啉)和十二烷基硫酸钠混合物在空气-水界面的吸附:聚(乙烯亚胺)官能团改性的影响。
DOI:
10.1021/la303926c
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Halacheva SS
中科院分区:
文献类型:
--
作者:
Halacheva SS
The adsorption of the polymer–surfactant mixture of poly(2-ethyl-2-oxazoline)–sodium dodecyl sulfate at the air–water interface has been studied by neutron reflectivity and surface tension. The observed patterns of adsorption more closely resemble those encountered in weakly interacting polymer–surfactant mixtures, rather than the pronounced enhancements in adsorption observed in strongly interacting polymer–surfactant mixtures, such as in the related poly(ethyleneimine)–sodium dodecyl sulfate mixtures. The adsorption was found to be strongly dependent on solution pH, polymer molecular weight, and polymer concentration. At the lower and higher molecular weights studied, there was little enhancement in the sodium dodecyl sulfate adsorption at low sodium dodecyl sulfate concentrations, whereas at the intermediate polymer molecular weights, some enhancement in the adsorption was observed. For the higher-molecular-weight polymers and at increasingly higher polymer concentrations, a significant reduction of the surfactant at the interface compared to pure sodium dodecyl sulfate occurred for sodium dodecyl sulfate concentrations between the critical aggregation concentration and the critical micellar concentration. The results illustrate the important role of modifying the functionality of poly(ethyleneimine) on surface adsorption.
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DOI:
10.1021/la8024843
发表时间:
2009
期刊:
the ACS journal of surfaces and colloids
影响因子:
--
作者:
Penfold J
通讯作者:
Penfold J
DOI:
10.1021/la104698w
发表时间:
2011
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
X. L. Zhang;D. Taylor;R. Thomas;J. Penfold
通讯作者:
J. Penfold
影响因子:
3.3
作者:
D. Cooke;C. Dong;J. Lu;R. Thomas;E. Simister;J. Penfold
通讯作者:
J. Penfold
影响因子:
3.9
作者:
Penfold, J;Tucker, I;Zhang, J
通讯作者:
Zhang, J
影响因子:
9.9
作者:
G. D’Errico;D. Ciccarelli;O. Ortona;L. Paduano;R. Sartorio
通讯作者:
R. Sartorio