. "We have synthesized amphiphilic and ionomeric diblock copolymers as models of systems suitable for construction of membranes for fuel cells. We have prepared a number of polymers based on the block copolymer polystyrene-block-poly(hydrogenated isoprene)"@en . . . . "Polymern\u00ED membr\u00E1ny jsou p\u0159edm\u011Btem intenzivn\u00EDho v\u00FDzkumu vzhledem ke sv\u00FDm rozs\u00E1hl\u00FDm oblastem aplikac\u00ED v separa\u010Dn\u00EDch procesech, membr\u00E1nov\u00FDch reaktorech, za\u0159\u00EDzen\u00EDch pro uchov\u00E1v\u00E1n\u00ED energie a p\u0159edev\u0161\u00EDm v palivov\u00FDch \u010Dl\u00E1nc\u00EDch. V z\u00E1vislosti na typu pou\u017Eit\u00E9ho materi\u00E1lu je struktura membr\u00E1ny v\u00EDcem\u00E9n\u011B n\u00E1hodn\u00E1 a neuspo\u0159\u00E1dan\u00E1 na mikroskopick\u00E9 a nanoskopick\u00E9 \u00FArovni. Jsou to v\u0161ak transportn\u00ED vlastnosti iont\u016F a molekul rozpou\u0161t\u011Bdla pr\u00E1v\u011B na t\u00E9to \u00FArovni, kter\u00E9 rozhoduj\u00ED o pou\u017Eitelnosti membr\u00E1ny pro dan\u00FD \u00FA\u010Del; u matri\u00E1l\u016F s uspo\u0159\u00E1danou strukturou na nanoskopick\u00E9 \u00FArovni lze o\u010Dek\u00E1vat podstatn\u011B lep\u0161\u00ED vlastnosti. Navrhujeme vytvo\u0159it membr\u00E1nov\u00E9 materi\u00E1ly s pravidelnou (uspo\u0159\u00E1danou) strukturou s vyu\u017Eit\u00EDm existuj\u00EDc\u00EDch, t\u00E9\u017E na\u0161ich, znalost\u00ED o samoorganizaci hydrofobn\u00EDch dvoj- a trojblokov\u00FDch kopolymer\u016F a roz\u0161\u00ED\u0159it v\u00FDzkum na polymery slo\u017Een\u00E9 z hydrofobn\u00EDch a hydrofiln\u00EDch blok\u016F. Hodl\u00E1me stanovit podm\u00EDnky, za kter\u00FDch vznikaj\u00ED materi\u00E1ly s uspo\u0159\u00E1danou morfologi\u00ED o r\u016Fzn\u00E9 symetrii, v z\u00E1vislosti na typu polymeru, jeho d\u00E9lce a" . "0"^^ . "Neuvedeno."@en . . . . "2007-08-10+02:00"^^ . "Samoorganizovan\u00E9 nanostruktury amfifiln\u00EDch blokov\u00FDch kopolymer\u016F" . . "Polymer membranes are widel studied materials because of their extensive technical applications in separation processes, membrane reactors, energy storage and in particular in fuel cells. Depending on the exact type of material used, the structure of themembrane is more or less random or disordered on the microscopic or nanoscopic scale. Yet, it is the (ionic and solvent) transport properties on these scales that ultimately determine the applicability of the membrane for the given purpose and clearly materials with regular nanoscopic structure are likely to have superior properties. In order to generate membrane materials with regular (ordered) and controlled structure we propose to make use of existing knowledge, including our own experience, of self-ordering of hydrophobic diblock and triblock copolymers and extend the research to combinations of hydrophobic and hydrophilic blocks. We intend to investigate conditions under which ordered morphologies with different symmetries can be created as a"@en . "GESON/03/E001" . . "12"^^ . . . "Self-organized amphiphihlic block copolymer nanostructures"@en . "12"^^ . . "Syntetizovali jsme amfifiln\u00ED a ionomern\u00ED dvojblokov\u00E9 kopolymery jako modely uspo\u0159\u00E1dan\u00FDch syst\u00E9m\u016F vhodn\u00FDch pro konstrukci membr\u00E1n pro palivov\u00E9 \u010Dl\u00E1nky. P\u0159ipravili jsme \u0159adu polymer\u016F na b\u00E1zi blokov\u00E9ho kopolymeru polystyren-blok-(hydrogenovan\u00FD polyisopren),"@cs . "http://www.isvav.cz/projectDetail.do?rowId=GESON/03/E001"^^ . "0"^^ . . . . . "1"^^ . . . . . .