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Polymers 2018, 10(11), 1271; https://doi.org/10.3390/polym10111271

Hybrid Materials Based on l,d-Poly(lactic acid) and Single-Walled Carbon Nanotubes as Flexible Substrate for Organic Devices

1
Institute of Physics, Jagiellonian University, Prof. S. Lojasiewicza 11, 30-348 Krakow, Poland
2
Military Institute of Engineer Technology, Obornicka 136 Str., 50-961 Wroclaw, Poland
3
Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
4
Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Krakow, Poland
5
Faculty of Security and Safety Research, General Tadeusz Kosciuszko Military University of Land Forces, Wroclaw, MULF Wroclaw, Czajkowskiego 109 Str., 51-147 Wroclaw, Poland
In memory of Dr. Eng. Piotr Dacko.
*
Authors to whom correspondence should be addressed.
Received: 9 October 2018 / Revised: 8 November 2018 / Accepted: 8 November 2018 / Published: 15 November 2018
(This article belongs to the Special Issue Polymer-CNT Nanocomposites)
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Abstract

We report on the application of l,d-poly(lactic acid) (l,d-PLA) with dispersed Single-Walled Carbon Nanotubes (SWCN) as a flexible translucent electrode for organic devices. We used commercially available nanotubes in various weight ratios from 0 to 8% dispersed in chloroform polymeric solution by ultrasonication and were drop cast. The created hybrid materials were investigated by differential scanning calorimetry to determine the influence of SWCN content on the thermal behavior, while polarizing optical microscope was used to find the effect of mechanical deformations on the textures. Drop-cast films were studied by optical transmittance, conductivity, dielectric properties and by thermal imaging under applied potential. Thermal imaging provided evidence of visible voltage-activated conduction. Simple mechanical deformation such as bending with stretching at edge to ca. 90 and elongation test were performed. Moreover, interactions between l,d-poly(lactic acid) and SWCN were investigated by FT-IR and NMR spectroscopy. Finally, we can conclude that the thermographic examination of created films permits fast, simple and inexpensive localization of defects on the surface of l,d-PLA:SWCN film, together with the electrical properties of the films. View Full-Text
Keywords: l,d-poly(lactic acid); single wall carbon nanotubes; thermographic camera; hybrid materials; flexible substrate l,d-poly(lactic acid); single wall carbon nanotubes; thermographic camera; hybrid materials; flexible substrate
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Fryń, P.; Bogdanowicz, K.A.; Górska, N.; Rysz, J.; Krysiak, P.; Marzec, M.; Marzec, M.; Iwan, A.; Januszko, A. Hybrid Materials Based on l,d-Poly(lactic acid) and Single-Walled Carbon Nanotubes as Flexible Substrate for Organic Devices. Polymers 2018, 10, 1271.

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