Sökning: "IONIC SURFACTANTS"

Visar resultat 1 - 5 av 53 avhandlingar innehållade orden IONIC SURFACTANTS.

  1. 1. Surfactants based on natural products - enzymatic synthesis and functional characterization

    Författare :Fredrik Viklund; KTH; []
    Nyckelord :Enzymatic synthesis; Surfactants; Antioxidants; Ascorbyl oleate; Polyethylene glycol PEG esters; Hemolysis; Transepithelial electrical resistance; Ionic liquids; Candida antarctica lipase B;

    Sammanfattning : Surfactants are molecules that contain a water-soluble and afat-soluble part. They have important functions in productssuch as detergents, cosmetics, pharmaceuticals and foods aswell as in many industrial processes. Surfactants are used onvery large scale, which makes it important to decrease theirimpact on the environment. LÄS MER

  3. 2. Nanoconfined imidazolium ionic liquids

    Författare :Szilvia Vavra; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; surface active ionic liquids; protic ionic liquids; nanoconfinement; oriented and parallel nanochannels;

    Sammanfattning : Long-chain ionic liquids are attracting interest as alternatives to their short-chain analogues as electrolytes. At the same time, they are also considered as alternatives to mesogens and conventional surfactants as templates. LÄS MER

  4. 3. Polyelectrolyte induced assembly of ionic surfactants

    Författare :Per Hansson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 4. Allergenic oxidation products in ethoxylated non-ionic surfactants : Chemical characterization and studies on allergenic activity

    Författare :Margareta Bergh; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical chemistry; Farmaceutisk kemi; Pharmaceutical chemistry; Farmaceutisk kemi; Organic Pharmaceutical Chemistry; organisk farmaceutisk kemi;

    Sammanfattning : The susceptibility of ethoxylated non-ionic surfactants to oxidation on exposure to air was investigated. Surfactants have a complex chemical composition and are widely used in a variety of applications for to their amphiphilic properties. Ethoxylated non-ionic surfactants are regarded by the producers to be stable at normal handling. LÄS MER

  7. 5. Ethyl(hydroxyethyl)cellulose and Some Model Uncharged Polymers: A Calorimetric Study of Their Interaction with Surfactants in Aqueous Solution

    Författare :Geng Wang; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; calorimetry; differntial scanning; isothermal titration; enthalpy; electrolyte; micelles; self-association; thermal gelling; interaction; alkyltrimethylammonium halides; sodium dodecylsulfate; surfactants; polymers; ethyl hydroxylethyl cellulose; viscosity; phase behavior; self-diffusion NMR; Physics; Fysik; Chemistry; Kemi; Fysicumarkivet A:1997:Wang;

    Sammanfattning : The interactions between uncharged polymers, e.g. ethyl(hydroxylethyl)cellulose (EHEC) and some model polymers, and ionic surfactants in aqueous solution has been studied by using isothermal titration and differential scanning calorimetry. LÄS MER