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基于选定脂肪族或脂肪族-芳香族聚合物、5CB或单壁碳纳米管朝向可生物降解电极的二元和三元复合材料的研究。

Research of Binary and Ternary Composites Based on Selected Aliphatic or Aliphatic-Aromatic Polymers, 5CB or SWCN Toward Biodegradable Electrodes.

作者信息

Fryń Patryk, Jewłoszewicz Beata, Bogdanowicz Krzysztof Artur, Przybył Wojciech, Gonciarz Agnieszka, Pich Robert, Marzec Monika, Iwan Agnieszka

机构信息

Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland.

Military Institute of Engineer Technology, Obornicka 136 Str., 50-961 Wroclaw, Poland.

出版信息

Materials (Basel). 2020 May 29;13(11):2480. doi: 10.3390/ma13112480.

DOI:10.3390/ma13112480
PMID:32486053
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7321163/
Abstract

The main goal of this paper was to study the optical, electrical, and thermal properties of hybrid composites based on biodegradable polymers (L,D-poly(lactic acid), polycaprolactone or Ecoflex®), single walled carbon nanotubes (SWCN), and 4'-pentyl-4-biphenylcarbonitrile (5CB). The biodegradable polymers' binary and ternary compositions were analyzed in detail by ultraviolet and visible (UV-Vis) spectroscopy taking into consideration their chemical structure and interactions with 5CB and SWCN. Differential scanning calorimetry (DSC) studies of the created hybrid layers showed thermal stability and changes in glass transition temperature and melting point in comparison to neat polymers, depending on the chemical structure of the polymer used and the type of composition. Morphology of the created layers were investigated by atomic force and polarizing microscopy. The static contact angle measurements of a water drop showed that all of the neat polymer layers were hydrophobic with angle values ranging from 108° to 115°. In addition, in the case of the Ecoflex layers, both with and without additives, a rapid sorption of the deposited water drop was observed. Finally, a simple device with poly(ethylene terephthalate) (PET)/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/poly [[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl ]] (PTB7) : [6,6]-phenyl-C71-butyric acid methyl ester (PCBM)/Ag/biodegradable polymer:SWCN architecture was constructed and tested using an infrared (IR) thermographic camera to investigate the surface defects on the created hybrid layers. Increasing the SWCN admixture from 0.01 to 0.5% significantly improved the conductivity only in the case of L,D-poly(lactic acid):SWCN (10:0.5), for which above 5 V, a current with a resistance of 3030.7 Ω could be measured. In order to use the created layers as flexible electrodes, the first experiments were carried out with an admixture of SWCN and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) as conductive compounds.

摘要

本文的主要目标是研究基于可生物降解聚合物（L,D-聚乳酸、聚己内酯或Ecoflex®）、单壁碳纳米管（SWCN）和4'-戊基-4-联苯甲腈（5CB）的混合复合材料的光学、电学和热学性质。通过紫外可见（UV-Vis）光谱详细分析了可生物降解聚合物的二元和三元组成，同时考虑了它们的化学结构以及与5CB和SWCN的相互作用。对所制备的混合层进行差示扫描量热法（DSC）研究，结果表明，与纯聚合物相比，根据所用聚合物的化学结构和组成类型，混合层具有热稳定性，玻璃化转变温度和熔点也发生了变化。通过原子力显微镜和偏光显微镜研究了所制备层的形态。对水滴的静态接触角测量表明，所有纯聚合物层都是疏水的，接触角值在108°至115°之间。此外，对于Ecoflex层，无论有无添加剂，都观察到沉积的水滴有快速吸附现象。最后，构建了一种具有聚对苯二甲酸乙二酯（PET）/氧化铟锡（ITO）/聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT:PSS）/聚[[4,8-双[(2-乙基己基)氧基]苯并[1,2-b:4,5-b']二噻吩-2,6-二基][3-氟-2-[(2-乙基己基)羰基]噻吩并[3,4-b]噻吩二基]]（PTB7）:[6,6]-苯基-C71-丁酸甲酯（PCBM）/Ag/可生物降解聚合物:SWCN结构的简单器件，并使用红外（IR）热成像相机进行测试，以研究所制备混合层的表面缺陷。仅在L,D-聚乳酸:SWCN（10:0.5）的情况下，将SWCN掺混物从0.01%增加到0.5%可显著提高电导率，在5V以上时，可测量到电阻为3030.7Ω的电流。为了将所制备的层用作柔性电极，首次使用SWCN与聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）的混合物作为导电化合物进行了实验。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1971/7321163/ec320dda7420/materials-13-02480-g010.jpg
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