Unilever Research and Development Laboratory, Port Sunlight, Quarry Road East, Bebington, Wirral, UK.
Langmuir. 2012 Jul 24;28(29):10773-80. doi: 10.1021/la3019265. Epub 2012 Jul 10.
The nature of hydrophobic thin cellulose films, formed by Langmuir-Blodgett (LB) deposition on silica, has been studied using neutron reflectivity (NR). The impact of electrolyte and a polyelectrolyte, poly(dimethyldiallylammonium chloride) (polydmdaac), on the adsorption of the anionic surfactant sodium dodecyl sulfate (SDS) onto the surface of the hydrophobic cellulose film and upon the structure of the cellulose film has been investigated. The results show how a combination of polyelectrolytes and electrolyte can be used to manipulate surfactant adsorption onto hydrophobic cellulose surfaces and modify the structure of the cellulose film by swelling and penetration. The results illustrate how polyelectrolytes can be used to reverse adsorption and swelling of cellulose films which are not reversible simply by dilution in solvent.
使用中子反射率（NR）研究了通过 Langmuir-Blodgett（LB）沉积在二氧化硅上形成的疏水性薄纤维素膜的性质。研究了电解质和聚电解质聚（二甲基二烯丙基氯化铵）（polydmdaac）对阴离子表面活性剂十二烷基硫酸钠（SDS）在疏水性纤维素膜表面上的吸附以及纤维素膜结构的影响。结果表明，如何将聚电解质和电解质结合使用来操纵表面活性剂吸附到疏水性纤维素表面上，并通过溶胀和渗透来改变纤维素膜的结构。结果说明了聚电解质如何用于逆转通过简单稀释溶剂而不可逆的纤维素膜的吸附和溶胀。
