NDLI: Optical and electrical investigation of the electrospun poly(N-vinyl carbazole) fibers

Content Provider	Springer Nature Link
Author	Gökçeören, Argun Talat
Copyright Year	2015
Abstract	Fibers of polystyrene/poly(N-vinylcarbazole) (PS/PNVCz) were prepared by electrospinning method and cross polymerized (PS/c-PNVCz) by ring polymerization with ceric ammonium nitrate (CAN) to be used as free stand electrode. Fourier transform infrared spectroscopy (FTIR), Atomic force microscopy (AFM) and polarized optical microscope (POM) were used for their structural characterization. Thermal stability and glass transition temperature (T$_{g}$) were measured by differential scanning calorimetry (DSC). The synthesis and characterization results showed that the incorporation of NVCz moieties affected the thermal characteristics with an increase in T$_{g}$, the topological properties of the PS fibers with an increase in fiber diameter and the crystallinity because of the π-π interaction between the stacking PNVCz rings and the PS. The interaction among the PNVCz chains with the electrolyte was discussed depending on the synthetic conditions, preparation process and the structure of the organic matrix according to the electrochemical impedance spectroscopy measurement results. The electrical conductivity of the PNVCz fibers was improved from semi-insulator (0.2×10$^{−6}$ S·cm$^{−1}$) to semi-conducting (0.8×10$^{−4}$ S·cm$^{−1}$) character. The measured fluorescence spectrums visualized the fibers dependency by a shift of the excitation from 328 nm to 358 nm with the PNVCz content.
Starting Page	86
Ending Page	94
Page Count	9
File Format	PDF
ISSN	12299197
Journal	Fibers and Polymers
Volume Number	16
Issue Number	1
e-ISSN	18750052
Language	English
Publisher	The Korean Fiber Society
Publisher Date	2015-03-04
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Poly(N-vinylcarbazole) Fibers DSC thermograms AFM micrographs EIS measurements Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Polymers and Plastics

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