Développement de la polymérisation par (hétéro)arylation directe pour l'électronique organique
|Abstract:||Organic electronics is growing interest thanks to new possibilities it offers to facilitate the integration of electronic devices in our lives. With this new technology, we can consider novel products that are light, flexible, and inexpensive to produce. The three major classes of studied devices are organic photovoltaic cells (OPV) and organic field effect transistors (OFET).In recent years, particular attention has been paid to the method of preparation of the organic materials used in the fabrication of these devices. The polymerization by direct (hetero)arylation (DHAP) catalyzed by Pd is a powerful new tool that meets the needs of the area. DHAP provides a synthesis without organometallic derivative, which facilitates purification and reduces the number of steps and materials which makes possible the production at a lower cost. In addition, the PHAD allows the preparation of materials that were difficult or impossible to obtain before. However, the major drawback of the DHAP was its restriction to only certain classes of compounds. In this thesis, the project consists of studying the DHAP polymerization to open it to new classes of derivatives and expand its application in the field of organic electronics. First, the use of protecting groups and removable groups was studied on benzodithiophene and bithiophene-TMS units. Following these results, our work focused on the importance of controlling the polymerization when it is applied to the large polymer family of bromo(aryl)s with bithiophenes. This study has shown the importance of controlling the PHAD to obtain the desired polymer Finally, we studied the effect of the catalyst system to limit the β defects on polymers based of thiophene. We emphasis on the importance of using appropriate characterization tools to confirm the quality of the polymers obtained.|
|Document Type:||Thèse de doctorat|
|Open Access Date:||24 April 2018|
|Collection:||Thèses et mémoires|
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