Abstract:In diesem Aufsatz wird ein neuer Copolymerisationstyp beschrieben, der sich dadurch auszeichnet, dalj das Kettenwachstum spontan ohne Zusatz eines Katalysators ablauft. Ein nucleophiles (MN) und ein elektrophiles Monomer (ME) reagieren zu einem Zwitterion ('MN-ME), von dem Start-und Wachstumsreaktionen ausgehen. 23 neuartige Copolymerisationen wurden auf der Basis dieses Konzepts ausgearbeitet. Als MN-Monomere wurden funf-und sechsgliedrige cyclische Iminoether, Dihydro-2(3H)-furanimin, ein Azetidin, ein cycli… Show more
“…A zwitterion is a macromolecule with both cationic and anionic sites [10][11][12][13] and in some cases maintain the zwitterionic end group in the propagation [14], as in poly-(4-Vinlypyridine) salts. The importance of zwitterions can be understood by recalling that aminoacids are zwitterions at physiological pH conditions.…”
The Poisson-Boltzman equation for double-charged macromolecules (zwitterions) is obtained from very basic assumptions. The final linearized equation is solved for two cases of general interest: spherical and cylindrical symmetries.
“…A zwitterion is a macromolecule with both cationic and anionic sites [10][11][12][13] and in some cases maintain the zwitterionic end group in the propagation [14], as in poly-(4-Vinlypyridine) salts. The importance of zwitterions can be understood by recalling that aminoacids are zwitterions at physiological pH conditions.…”
The Poisson-Boltzman equation for double-charged macromolecules (zwitterions) is obtained from very basic assumptions. The final linearized equation is solved for two cases of general interest: spherical and cylindrical symmetries.
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