Organic and Macromolecular Chemistry
Freie Universität Berlin Fachbereich Biology, Chemie, Pharmazie Institut für Chemie
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113

Bo, Z.; Rabe, J.P.; Schlüter, A. D.
"A Poly(para-phenylene) with Hydrophobic and Hydrophilic Domains: Prototype of an Amphiphilic Cylinder with the Potential to Segregate Lengthwise"
Angew. Chem. Int. Ed. 1999, 38, 2370-2372, Angew. Chem. 1999, 111, 2540-2542
Keywords Amphiphiles, dendrimers, monolayer, nano objects, polymers  
 
 
Abstract A new type of Suzuki monomerwas synthesized, which carries G2 hydrophobic and hydrophilic dendrons and can be polymerized to give the first length-wise (not block-wise) amphiphilically equipped poly(para-phenylene) 10. Polymer 10 differs from known amphiphiles in that it consists of a linear, covalently bound sequence of "little" amphiphiles. From common "polysoaps" it differs because it is much more rigid which should increase ist potential to aggregate, e.g., into channels. LB experiments provide first evidence that the dendritic substituents of 10 segregate lengthwise into hydrophobic and hydrophilic domains (see schematic representation A).