bei Google ScholarTitelangaben
Zeng, Jun ; Sun, Zaicheng ; Hou, Haoqing ; Dersch, Roland ; Wickel, Holger ; Wendorff, Joachim H. ; Greiner, Andreas:
Functional polymer nanofibers and nanotubes via electrospinning.
In:
Reneker, Darrell H. ; Fong, Hao (Hrsg.): Polymeric nanofibers. -
Washington, DC
: American Chemical Society
,
2006
. - S. 163-172
. - (ACS Symposium Series
; 918
)
ISBN 978-0-8412-3919-7
Abstract
Functional polymer nanofibers were prepared by electrospinning of ternary polymer solutions (e. g. poly-L-lactide (PLA)) and low molecular weight metal compounds. These functionalized fibers were further modified by coating with poly(p-xylylene) (PPX) via chemical vapor deposition (CVD). Removal of PLA by decomposition or selective solvent extraction resulted in the formation of nanotubes with e. g. Pd-nanoparticles on the inside or outside of the tubes depending on the reaction conditions. Functional nanotubes available for numerous chemical modifications were obtained by the TUFT-process (Tubes by Fiber Templates). According to this process by PLA template fibers were coated with a mixture of poly(vinylalcohol) (PVA) and poly(acrylic acid) (PAA) followed by CVD of PPX as a protective coating. Heating of these composite fibers resulted in decomposition of PLA and chemical crosslinking PVA/PAA. Residual OH-groups were used as reactive sites for immobilization of functional small molecules such as anthracene derivatives. Co-electrospinning by coaxial jets of different materials resulted in fibers with concentric variation of materials concentration. For example, fibers with PLA shell and Pd core where obtained after co-electrospinning of PLA-chloroform and palladium diacetate - THF solutions followed by heating to 170 degrees C.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Nein |
| Keywords: | TEMPLATE FIBERS |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 13 Apr 2015 09:14 |
| Letzte Änderung: | 03 Jul 2015 07:07 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/9695 |