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Polypyrrole solution interface, structure

The specific type of surface active pyrrole derivative used to form the monolayer was found to strongly influence the chemistry that is initiated at the air-water interface. For example, when solutions containing a 5000/1 mole ratio of pyrrole/3-octadecylpyrrole were spread onto the oxidizing subphase, copolymerization of the two monomers occurred as well as homopolymerization of the unsubstituted pyrrole monomer. The net result was a relatively thick surface film (100-200A) that was very difficult to transfer into multilayers via a conventional vertical lifting technique. With 3-octadecanoylpyrrole as the surface active component, on the other hand, copolymeiization of the two monomers was suppressed and only electrically conducting polypyrrole chains were formed. In this latter case, uniform monolayer films about 40 A thick were formed and these could be readily transferred into multilayer structures. The chemical structures of the molecules used in this particular system are presented in Scheme 3. [Pg.369]


See other pages where Polypyrrole solution interface, structure is mentioned: [Pg.103]    [Pg.462]    [Pg.368]    [Pg.417]    [Pg.1469]    [Pg.757]    [Pg.74]    [Pg.402]    [Pg.237]   


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Interface solution

Interface structure

Polypyrrol

Polypyrrole

Polypyrroles

Polypyrrolic

Solute structure

Structural solutions

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