Abakevičienė Brigita, Guobienė Asta, Jucius Dalius, Lazauskas Algirdas
Institute of Materials Science, Kaunas University of Technology, K. Baršausko 59, LT51423 Kaunas, Lithuania.
Department of Physics, Kaunas University of Technology, Studentų str. 50, LT51423 Kaunas, Lithuania.
Polymers (Basel). 2021 Apr 15;13(8):1299. doi: 10.3390/polym13081299.
Free-standing composite films were fabricated by combining the plane parallel layers of thiol-ene based on pentaerythritol tetrakis(3-mercaptopropionate)-1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (PETMP-TTT) UV curable polymer and poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) conductive polymer. A systematic analysis was performed with the focus on mechanical performance of the free-standing composite films. The PEDOT:PSS/PETMP-TTT composite exhibited higher values of adhesion force compared to the free-standing PETMP-TTT film due to hydrophilic nature of the PEDOT:PSS layer. The composite was found to be highly transparent in the range of 380-800 nm. The Young's modulus and tensile strength of PETMP-TTT were found to be 3.6 ± 0.4 GPa and 19 ± 3 MPa, while for PEDOT:PSS/PETMP-TTT to be 3.5 ± 0.3 GPa and 20 ± 3 MPa, respectively. The sheet resistance values of the PEDOT:PSS layer in the composite film were found to be highly stable after a number of bending iterations with slight increase in sheet resistance from 108 to 118 ± 2 Ω/□. The resultant PEDOT:PSS/PETMP-TTT composite can be further used in optoelectronic applications.
通过将基于季戊四醇四(3 - 巯基丙酸酯)-1,3,5 - 三烯丙基 - 1,3,5 - 三嗪 - 2,4,6(1H,3H,5H)-三酮(PETMP - TTT)的硫醇 - 烯的平面平行层与聚(3,4 - 乙撑二氧噻吩)聚(苯乙烯磺酸盐)(PEDOT:PSS)导电聚合物相结合,制备了独立的复合薄膜。以独立复合薄膜的机械性能为重点进行了系统分析。由于PEDOT:PSS层的亲水性,与独立的PETMP - TTT薄膜相比,PEDOT:PSS/PETMP - TTT复合材料表现出更高的粘附力值。发现该复合材料在380 - 800 nm范围内具有高透明度。发现PETMP - TTT的杨氏模量和拉伸强度分别为3.6±0.4 GPa和19±3 MPa,而PEDOT:PSS/PETMP - TTT的杨氏模量和拉伸强度分别为3.5±0.3 GPa和20±3 MPa。复合薄膜中PEDOT:PSS层的薄层电阻值在多次弯曲迭代后被发现高度稳定,薄层电阻从108略微增加到118±2 Ω/□。所得的PEDOT:PSS/PETMP - TTT复合材料可进一步用于光电子应用。