The effect of poly(oxyethylene) alkyl ethers, alkanediols, and alkanols on the critical micelle concentration of sodium dodecyl sulfate.
スポンサーリンク
概要
- 論文の詳細を見る
The effect of the addition of the homologues of poly(oxyethylene) alkyl ethers (C<I><SUB>m</SUB></I>H<SUB>2<I>m</I>+1</SUB>(OCH<SUB>2</SUB>CH<SUB>2</SUB>)<I><SUB>n</SUB></I>OH: <I>m</I>=3–6, <I>n</I>=1–4), α,ω-alkanediols (<I>m</I>=4–6,8), and 1-alkanols (<I>m</I>=2–7) on the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) was examined. The homologous additives are appropriate for studying the effect of polar groups as well as an alkyl group. The CMC decreases with an increase in the concentration of additive. The rate of CMC-decrease estimated at the infinite dilution of the additive increases with the length of alkyl chain in each homologue. The dependence of the rate on the alkyl chain length is the same for all the homologues with longer chain (<I>m</I>≥4 for ethers and alkanols, and <I>m</I>>6 for alkanediols). This is ascribed to the complete transfer of the long alkyl chain into the interior of micelles. The dependence of rate on the number of polar groups (OH, OCH<SUB>2</SUB>CH<SUB>2</SUB>) is as follows. The rate for alkanediol is lower than that for alkanol with a given alkyl chain. The rate for ethers increases asymptotically with the length of oxyethylene chain. The result for alkanediol is ascribed to the pronounced hydrophilic nature, and that for ethers to the reduction of electrostatic repulsive force between ionic head groups of the surfactant in micelles.
- 公益社団法人 日本化学会の論文
著者
-
Manabe Masahiro
Department of Applied Chemistry and Biotechnology, Niihama National College of Technology
-
Koda Masaharu
Department of Industrical Chemistry, Niihama Technical College Niihama
-
Manabe Masahiro
Department of Industrial Chemistry, Niihama Technical College
-
Koda Masaharu
Department of Industrial Chemistry, Niihama Technical College
関連論文
- BK virus-associated nephropathy in an HIV-positive patient with gingival plasmablastic lymphoma
- Cortisol levels in umbilical vein and umbilical artery with or without antenatal corticosteroids
- Acute myeloid leukemia with cuplike nuclei and intracytoplasmic inclusions following myelodysplastic syndrome
- Counter Ion Release of Ionic Surfactant Micelles Induced by Solubilized Amphiphiles : Size Effect of a Polar Head Group
- Partition Coefficients of 1-Alkanols between Water and DDAB Vesicle Membrane Determined by Differential Conductivity Method
- Conductometric and Volumetric Studies on the Inonization, Hydration, Aggregation, and Coagulation of AOT in Dodecane
- Premicelle Formation of Double-chain Surfactants and Bile Salts in the Neighborhood of the CMC Region: Application of a Differential Conductivity Technique to the Determination of Micellization Parameters
- Precursor B-lymphoblastic Lymphoma Involving an Intracardiac Mass and Myocardial Infiltration: A Case Report
- Lenalidomide induced graft-versus-host disease in a patient with relapsed multiple myeloma three and a half years after allogeneic hematopoietic stem cell transplantation
- Transfer of homologous alkanols from water to fluorocarbon and hydrocarbon surfactant micelles.
- The partial molar volume of 1-alkanols in a sodium dodecylsulfate solution around its critical micelle concentration.
- The effect of poly(oxyethylene) alkyl ethers, alkanediols, and alkanols on the critical micelle concentration of sodium dodecyl sulfate.
- Partial molal volumes of surfactants in methanol-water mixtures.
- Partition Coefficients of Alkanols and Polyoxyethylene Alkyl Ethers in the Dodecane–Water System at 25 °C