Sökning: "Nonionic Surfactant"

Visar resultat 11 - 15 av 53 avhandlingar innehållade orden Nonionic Surfactant.

  1. 11. Formation of Block Copolymer and Surfactant Vesicles

    Författare :Karin Bryskhe; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymerteknik; Fysikalisk kemi; biopolymers; Polymer technology; nanoparticles; Lipid; triblock copolymer; surfactants; Nonionic; Vesicles; Formation; Physical chemistry;

    Sammanfattning : In this thesis temperature induced vesicle formation in both a block copolymer system and nonionic surfactant system have been investigated. The block copolymer is a triblock copolymer of poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO), PEO-PPO-PEO, with the average molecular composition of EO5PO68EO5 and the commercial trade name Pluronic L121 (papers I, II). LÄS MER

  3. 12. Tall oil products as raw material for surfactant synthesis

    Författare :Björn E.O. Hedman; KTH; []
    Nyckelord :Tall oil fatty acid; Tall oil rosin; Esterification; Catalytic epoxidation; Nonionic surfactant; Cmc; Cloud point;

    Sammanfattning : .... LÄS MER

  4. 13. Green Colloid Chemistry: Characterization of Environmentally Friendly Nonionic Surfactant Systems

    Författare :Christy Whiddon; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nucleophilic substitution; alkylglucosides; bicontinious micelles; self-diffusion NMR; nonionic surfactants; micellar catalysis; Physical chemistry; pKa; Fysikalisk kemi;

    Sammanfattning : Phase diagrams of mixed alkylglucoside surfactants, n-nonyl-b-D-glucopyranoside and n-decyl-b-D-glucopyranoside (C9G1 and C10G1) have been examined for the purpose of determining the microstructure surrounding a closed-loop miscibiliyt gap. There are large deuterium isotope effects on the phase diagram. LÄS MER

  5. 14. Surface Chemistry Studies on Surfactant Properties Relevant to Flotation De-inkin

    Författare :Katarina Theander; KTH; []
    Nyckelord :de-inking; sodium oleate; nonionic surfactant; surface tension; foaming;

    Sammanfattning : The objective of this work was to investigate thephysico-chemical properties of common de-inking chemicals. Thishas been done by means of equilibrium and dynamic surfacetension measurements as well as foaming experiments. LÄS MER

  7. 15. NMR Diffusion Studies of Association in Surfactant Systems Inclusion Complexes, Micellar Solutions and Microemulsions

    Författare :Markus Nilsson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; host-guest complexation; gemini surfactant; cyclodextrin; bolaform surfactant; self-diffusion NMR; pluronic; bicontinuous microemulsion; polydispersity; boosting effect;

    Sammanfattning : The aim of this thesis has been to investigate self-diffusion behavior of host-guest complex, microemulsion and polymer solution. Pulsed Field Gradient NMR (PFG-NMR) was shown to provide detailed molecular information in all system studied. LÄS MER