Search for dissertations about: "synthesis of surfactants"

Showing result 1 - 5 of 35 swedish dissertations containing the words synthesis of surfactants.

  2. 1. Synthesis of Polyhydroxylated Surfactants : Comparison of Surfactant Stereoisomers and Investigation of Haemolytic Activity

    Author : Kristina Neimert-Andersson; Peter Somfai; Krister Holmberg; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polyhydroxy surfactants; Sugar surfactants; Dihydroxylation; Metathesis; Langmuir monolayers; Chiral discrimination; Haemolysis; Organic chemistry; Organisk kemi;

    Abstract : I den här avhandlingen har vi studerat hur man kan göra nya tensider. En tensid är en speciell molekyl som har förmågan att lösa sig i både vatten och olja. Man kan göra följande experiment hemma: Fyll en glasburk till hälften med vatten och tillsätt en droppe matolja. READ MORE

  4. 2. Synthesis of Novel Polyhydroxyl Surfactants. Influence of the Relative Stereochemistry on Surfactant Properties

    Author : Kristina Neimert-Andersson; KTH; []
    Keywords : Polyhydroxyl surfactants; Sugar surfactants; Stereoselective; Synthesis; Dihydroxylation; Langmuir monolayers; Chiral discrimination;

    Abstract : This thesis deals with the synthesis and characterization ofnovel polyhydroxyl surfactants. The first part describes thesynthesis of a number of stereoisomers of a polyhydroxylsurfactant, and the second part concerns surface chemicalcharacterization. READ MORE

  5. 3. Synthesis and characterization of surfactants based on natural products

    Author : Peter Piispanen; KTH; []
    Keywords : surfactants; surface properties; natural products; melting point; wetting; foaming; dispersion; emulsification; solubility;

    Abstract : .... READ MORE

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

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

    Abstract : 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. READ MORE

  7. 5. Cleavable Cationic Gemini Surfactants

    Author : Ali Tehrani; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chemical hydrolysis; esterquat; gemini; biodegradation; adsorption; cleavable; synthesis; betaine ester; surfactant; solubilization; shape and size of micelle;

    Abstract : This research project concerns investigations of ester-containing cationic gemini surfactants (esterquat and betaine ester types). These dimeric surfactants are compared with their monomeric counterparts. READ MORE