Functional polymer nanofibers and nanotubes via electrospinning: Chemical modifications for selected advanced applications

POLY 493

Andreas Greiner1, Zaicheng Sun1, Jun Zeng1, Haoqing Hou2, Thomas Kissel3, and Joachim H. Wendorff4. (1) Department of Chemistry and Material Science Center, Philipps University Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany, (2) Dept. Chemistry, Philipps-University Marsburg, (3) Department of Pharmacy, Philipps-University of Marburg, Marburg, D-35032, Germany, (4) Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Strasse, Marburg, 35032, Germany
The preparation of Pd catalyst loaded polymer nanotubes can be accomplished by electrospinning of PVA/PdOAc solutions, coating of the resulting nanofibers, e. g. by PPX, followed by annealing and simultaneous conversion of PdOAc in Pd. These functionalized nanofibers can be used as catalyst for Heck-coupling reactions. Fluorescent polymer nanofibers can be obtained by reaction of PPX-PVA/PAA tubes (PPX outside) with anthracenoyl chloride, which showed strong fluorescence upon irradiation with UV-light. This model system for the preparation of anthracene functionalized nanotubes shows the versatility of the TUFT process for selective chemical functionalization of naotubes obtained by the TUFT-process. Polymer nanofibers with promising perspectives for numerous release applications were obtained by electrospinning of PVA/BSA solutions. Release rates of BSA under given conditions were modified by applications of different PPX coatings on PVA-BSA nanofibers, which offers manifold possibilities for the adjustment of release profiles of any release agent.

Polymeric Nanofibers
1:30 PM-5:10 PM, Wednesday, September 10, 2003 Hilton New York -- Sutton South, Oral

Division of Polymer Chemistry
The 226th ACS National Meeting, New York, NY, September 7-11, 2003