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  • Polyelectrolyte  (2)
  • Polymer and Materials Science  (1)
  • Polysoap  (1)
  • liquid crystals  (1)
  • 1
    Electronic Resource
    Electronic Resource
    A new anionic, hydrolysis-resistant polymerizable surfactant: synthesis and polymerization (1999)
    Springer
    Colloid & polymer science 277 (1999), S. 792-797 
    Details
    ISSN: 1435-1536
    Keywords: Key words Polymerizable surfactant ; Polyelectrolyte ; Monomer synthesis ; Alkyl sulfonate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The synthesis and some surfactant properties of a new type of sulfonated anionic monomer which is useful for free-radical polymerization are described. The monomer is based on the isobutenyl moiety as a reactive group. Higher homologues behave as polymerizable surfactants (“surfmers”). Copolymerization with a number of standard monomers is possible, as well as homopolymerization under micellar conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003960050453
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Monolayers of rod-shaped and disc-shaped liquid crystalline compounds at the air-water interface (1986)
    Springer
    Colloid & polymer science 264 (1986), S. 659-667 
    Details
    ISSN: 1435-1536
    Keywords: Monolayers ; liquid crystals ; discotics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Calamitic (rod-shaped) and discotic (disc-shaped) thermotropic liquid crystalline (LC) compounds were spread at the air-water interface, and their ability to form monolayers was studied. The calamitic LCs investigated were found to form monolayers which behave analogously to conventional amphiphiles such as fatty acids. The spreading of the discotic LCs produced monolayers as well, but with a behaviour different from classical amphiphiles. The areas occupied per molecule are too small to allow the contact of all hydrophilic groups with the water surface and the packing of all hydrophobic chains. Various molecular arrangements of the discotics at the water surface to fit the spreading data are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01469526
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Amphiphilic hyperbranched polyelectrolytes: a new type of polysoap (1999)
    Springer
    Colloid & polymer science 277 (1999), S. 519-527 
    Details
    ISSN: 1435-1536
    Keywords: Key words Hyperbranched polymer ; Polyelectrolyte ; Polysoap ; Micellar polymer ; Ionene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Hyperbranched hydrophobized polyelectrolytes of the ionene type are prepared. They are investigated as a new type of polysoap, with respect to viscosifying behaviour, surface activity and solubilization power. Compared to linear analogues, the viscosifying effect is reduced. Compared to classical polysoap architectures, such as analogous “tail-end-type” and “head-type” polysoaps, the hyperbranched polysoaps behave rather similarly to the “head-type” ones: they exhibit notable surface activity, whereas the solubilization capacity is moderate only.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003960050419
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Oriented supramolecular systems-polymeric monolayers and multilayers from prepolymerized amphiphiles (1986)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 145 (1986), S. 1-17 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Oriented polymeric membranes were originally prepared by polymerization or polycondensation of preoriented monomers. The introduction of hydrophilic spacer groups into the polymeric amphiphiles allowed the formation of highly ordered systems (monolayers, liposomes, multilayers) from prepolymerized amphiphiles: due to the partial decoupling of the different mobilities and orientation tendencies of the polymer chain and the amphiphilic side groups, these polymers are able to self-organize. In monolayer experiments the high order of these membranes could be demonstrated by their surface pressure area-diagrams. In addition the combination of order and mobility of these spacer groups containing polymeric amphiphiles allowed the formation of Langmuir-Blodgett-multilyers with a high layer correlation. Thus, disturbancies in highly oriented layers can be avoided normally taking place during the polymerization reaction (e.g. contractions) or oriented monomeric layers.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1986.051450101
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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