Analysis of composite nanofibrous layers by confocal Raman microscopy
作者： Adela Kotzianova , Jiri Rebicek , Peter Mojzes , Marek Pokorny , Jan Palacky
DOI: 10.1016/J.POLYMER.2014.08.032
关键词:
摘要: Abstract A method for the determination of nanofibrous mats chemical composition based on Raman spectroscopy and singular value decomposition is presented. Two different composite samples – a simultaneously spun layer-by-layer sample consisting polycaprolactone poly(ethylene) oxide were prepared by electrospinning. Using mapping, we able to determine in various local areas within each sample, distinguish image substantial changes distribution polymers caused preparation parameters. The ratio between both was expressed as relative fraction particular compound. results validated Fourier transform infrared spectroscopy. presence two substances also proved scanning electron microscopy. Confocal micro-Raman with its sensitivity spatial resolution may be used identify inhomogeneities materials could great help optimization electrospinning process.
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