Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
ACS Appl Mater Interfaces. 2010 Nov;2(11):2995-7. doi: 10.1021/am1008198. Epub 2010 Nov 5.
We propose new strategy to facilitate the fabrication of conjugated polymer fiber with higher oriented structures, which focused on electrospinning of a blend solution of regioregular poly(3-hexylthiophene) (rr-P3HT) and poly(vinyl pyrrolidone) (PVP). SEM observation revealed that the blend system forms homogeneous composite nanofibers. This system exhibits the specific feature of strong interchain contribution of P3HT from UV-vis absorption, fluorescence spectroscopic, XRD, and photoelectron spectrometric (for HOMO levels) investigations. We also demonstrate the removal of the PVP component from the P3HT/PVP composite fibers through the selective extraction and such strong interchain stacking of pristine P3HT fiber mat can be remarkably maintained.
我们提出了一种新策略，以方便具有更高取向结构的共轭聚合物纤维的制造，该策略侧重于规整形聚（3-己基噻吩）（rr-P3HT）和聚（聚乙烯吡咯烷酮）（PVP）共混溶液的静电纺丝。SEM 观察表明，共混体系形成了均匀的复合纳米纤维。该体系具有从紫外-可见吸收、荧光光谱、XRD 和光电子能谱（用于 HOMO 能级）研究中 P3HT 强的分子间贡献的特点。我们还通过选择性萃取证明了从 P3HT/PVP 复合纤维中去除 PVP 成分，并且可以显著保持原始 P3HT 纤维垫的强分子间堆积。
