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</o:shapelayout></xml><![endif]--></head><body lang=SL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Vabimo vas na 21. predavanje iz sklopa "Kolokviji na IJS" v letu 2013/14, ki bo <strong><span style='color:red'>v sredo, 04. junija 2014, ob 13. uri </span></strong><span style='color:red'>v Veliki predavalnici Instituta »Jožef Stefan«</span> na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete tudi na naslovu <a href="http://www.ijs.si/ijsw/Koledar_prireditev">http://www.ijs.si/ijsw/Koledar_prireditev</a>, posnetke preteklih predavanj<span style='color:blue'> </span>pa na <a href="http://videolectures.net/kolokviji_ijs">http://videolectures.net/kolokviji_ijs</a>. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></p><p class=MsoNormal><b><span style='mso-fareast-language:ZH-CN'>prof. dr. Kazuki Nakanishi<o:p></o:p></span></b></p><p class=MsoNormal><i><span style='mso-fareast-language:ZH-CN'>Oddelek za kemijo, Univerza v Kjotu, Kjoto, Japonska<o:p></o:p></span></i></p><p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:14.0pt'>Hierarhični porozni materiali: Priprava in uporaba pri znanosti o separaciji<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal>S fazno separacijo v kemijsko zamreženih sistemih, ki jo induciramo s polimerizacijo, lahko izdelamo hierarhične porozne monolitne materiale z zelo raznovrstno kemijsko sestavo od kovinskih oksidov in hibridnih materialov na osnovi metaloksanov do povsem organskih polimerov. Izdelali smo monolitne kolone različnih premerov in dolžin iz čistega silicijevega dioksida, ki so že na voljo na trgu. Zaradi možnosti neodvisnega spreminjanja premera makropor in debeline mreže v gelu je mogoče pripraviti kolone, ki imajo pri kar najmanjši razliki tlakov karseda veliko sposobnost separacije. V zelo velikih monolitih lahko uporabimo monolitni silicijev dioksid za pripravo komponent. V predavanju bomo obravnavali načela nadzora strukture s sol-gel reakcijo v kombinaciji s fazno separacijo in več tehnično pomembnih vprašanj uporabe teh materialov na različnih področjih znanosti o separaciji.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:justify'>Predavanje bo v angleščini.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><strong><span style='font-family:"Calibri","sans-serif";color:red'>Lepo vabljeni!</span></strong><strong><span style='font-weight:normal'><o:p></o:p></span></strong></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:SL'><br clear=all style='page-break-before:always'></span><p class=MsoNormal><span style='color:black'>We invite you to the 21th Institute colloquium in the academic year 2013/14. The colloquium will be held </span><b><span style='color:red'>on Wednesday June 04, 2014 at 1 PM</span></b><span style='color:red'> in <b>the main Institute lecture hall</b></span><span style='color:black'>, Jamova 39, Ljubljana. To read the abstract click </span><span style='color:#1F497D'><a href="http://www.ijs.si/ijsw/Koledar_prireditev">http://www.ijs.si/ijsw/Koledar_prireditev</a>. </span><span style='color:black'>Past colloquia are posted on</span><span style='color:#1F497D'> <a href="http://videolectures.net/kolokviji_ijs">http://videolectures.net/kolokviji_ijs</a>.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'>********************************************<b><o:p></o:p></b></p><p class=MsoNormal><b>prof. dr. Kazuki Nakanishi<o:p></o:p></b></p><p class=MsoNormal><i>Department of Chemistry, Kyoto University, Kyoto, Japan<o:p></o:p></i></p><p class=MsoNormal><b><span style='font-size:16.0pt;mso-fareast-language:ZH-CN'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:16.0pt'>Hierarchically Porous Materials: Preparation and Application to Separation Sciences<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:16.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal>Polymerization-induced phase separation in chemically cross-linked systems has been applied to obtain hierarchically porous monolithic materials in a broad range of compositions from metal oxides, metalloxane-based hybrids and even to fully organic polymers. In the case of pure silica, monolithic columns with varied diameter and length have been fabricated and commercialized so far. Due mainly to the freedom of independently controlling the macropore diameter and the thickness of the gel skeletons, monolithic columns can be designed so as to maximize the separation performance while minimizing the column pressure. Extra-large monoliths offer an opportunity to use monolithic silica for preparative purposes. The talk will cover the principles of structure control through the sol-gel reaction accompanied by phase separation as well as various technically important problems to be solved in applying the materials to widespread areas of separation sciences.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Cordially invited!<o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div></body></html>