在硅烷作为粘附促进剂存在的情况下聚吡咯的电化学沉积。
Electrochemical Deposition of Polypyrrole in the Presence of Silanes as Adhesion Promoters.
作者信息
Castro-Beltran Andres, Alvarado-Beltran Clemente G, Lara-Sanchez Jesus F, de la Cruz Wencel, Castillon-Barraza Felipe F, Cruz-Silva Rodolfo
机构信息
Facultad de Ingeniaria, Campus Mochis, Universidad Autónoma de Sinaloa, Fuente de Poseidón y Prol. Ángel Flores S/N, Los Mochis 81223, SIN, Mexico.
Departamento de Procesos de Transformación de Plásticos, Centro de Investigación en Química Aplicada (CIQA), Enrique Reyna H. 140, San José de los Cerritos, Saltillo 25294, COAH, Mexico.
出版信息
Polymers (Basel). 2023 May 18;15(10):2354. doi: 10.3390/polym15102354.
Polypyrrole adhesion to indium-tin oxide electrodes was improved by adding pre-hydrolyzed alkoxysilanes to the electrodeposition media. The pyrrole oxidation and film growth rates were studied by potentiostatic polymerization in acidic media. The morphology and thickness of the films were studied by contact profilometry and surface-scanning electron microscopy. The bulk and surface semiquantitative chemical composition was studied by Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy. Finally, the adhesion was studied by scotch-tape adhesion test, where both alkoxysilanes showed a significant improvement in adhesion. We proposed a hypothesis for the improvement in adhesion, that involves the formation of siloxane material as well as in situ surface modification of the transparent metal oxide electrode.
通过向电沉积介质中添加预水解的烷氧基硅烷，聚吡咯对铟锡氧化物电极的附着力得到了改善。在酸性介质中通过恒电位聚合研究了吡咯的氧化和膜生长速率。通过接触轮廓仪和表面扫描电子显微镜研究了膜的形态和厚度。通过傅里叶变换红外光谱和X射线光电子能谱研究了整体和表面的半定量化学成分。最后，通过胶带附着力测试研究了附着力，两种烷氧基硅烷在附着力方面均表现出显著改善。我们提出了一个关于附着力改善的假设，即涉及硅氧烷材料的形成以及透明金属氧化物电极的原位表面改性。
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