Infrared polarimetry: Anisotropy of polymer nanofibers

Micro and Nano Engineering

Brianna Blevins¹  Nataraja Sekhar Yadavalli²  Sergiy Minko³  Karsten Hinrichs⁴  Andreas Furchner⁵ 

[1] Corresponding author.;Department of Chemistry, The University of Georgia, Athens, Georgia 30602, United States;Helmholtz-Zentrum Berlin für Materialen und Energie, Division Energy and Information (CatLab Project), Schwarzschildstraße 8, 12489 Berlin, Germany;Leibniz-Institut für Analytische Wissenschaften – ISAS – e.V., Schwarzschildstraße 8, 12489 Berlin, Germany;Nanostructured Materials Laboratory, The University of Georgia, Athens, GA 30602, United States;

关键词: IR multi-scale metrology;    Nanofiber;    Polycaprolactone (PCL);    Touch-spinning;    AFM-IR;    Anisotropy;   

DOI  :  

来源: DOAJ

【 摘 要 】

We present a straightforward and easily interpretable multi-scale infrared (IR) spectroscopic characterization of anisotropy and arrangement of polymer nanofibers. Direct spectral interpretation of fiber bundles and single fibers with respect to their anisotropic properties is possible by applying non-invasive IR polarimetry at defined polarization states with spatial resolutions from the macroscale (a few mm) down to the nanoscale (a few 10 nm). A vivid relation is shown to exist between vibrational bands in s-polarized reflection and absorption-associated photothermal spectra measured by the AFM-IR technique. Such a relation is a prerequisite for detailed discussions of IR spectra with respect to complex fiber structures and materials.

【 授权许可】

Unknown