Search for dissertations about: "surfactants"

Showing result 1 - 5 of 239 swedish dissertations containing the word surfactants.

2. 1. Nonionic surfactants : A multivariate study

   Author : Lise-Lott Uppgård; Michael Sjöström; Svante Wold; Jiri Damborsky; Umeå universitet; []
   Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; AEO; APG; aquatic toxicity; cellulose reactivity; Fock; MLR; multivariate data analysis; nonionic surfactant; PCA; physicochemical properties; PLS; QSAR; surface activity; viscose; Chemistry; Kemi;

   Abstract : In this thesis technical nonionic surfactants are studied using multivariate techniques. The surfactants studied were alkyl ethoxylates (AEOs) and alkyl polyglucosides (APGs). The aquatic toxicity of the surfactants towards two organisms, a shrimp and a rotifer, was examined. The specified effect was lethality, LC50, as indicated by immobilisation. READ MORE

4. 2. Catanionic surfactants

   Author : Päivi Jokela; Department of Physical Chemistry University of Lund; []
   Keywords : Natural Science; Naturvetenskap;

   Abstract : .... READ MORE

5. 3. Synthesis of Polyhydroxylated Surfactants : Comparison of Surfactant Stereoisomers and Investigation of Haemolytic Activity

   Author : Kristina Neimert-Andersson; Peter Somfai; Krister Holmberg; KTH; []
   Keywords : NATURAL SCIENCES; NATURVETENSKAP; 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

6. 4. Adsorption of Surfactants at the Solid-Liquid Interface : A Quartz Crystal Microbalance Study

   Author : Johan Jim Roger Stålgren; KTH; []
   Keywords : Adsorption; QCM; Surfactants; Thiols;

   Abstract : .... READ MORE

7. 5. 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