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Conductive elastomers with tuneable properties for smart wearable electronics.

Periodic Reporting for period 1 - TEXTHIOL (Conductive elastomers with tuneable properties for smart wearable electronics.)

Reporting period: 2019-06-01 to 2021-05-31

Organic conductive polymers are gaining increased interest each day due to their broad applications, low cost and ease of manipulation. Their potential to develop new products that will transform the daily lives of people in Europe and around the world is significant. Among the application areas with the highest potential, smart textiles provide one of the most futuristic and innovative potential products. At present, a conducting polymeric material that can be use directly as textile does not exist primarily a consequence of the poor (brittle) materials properties of conducting polymers. Any such products are created by coating of the conductive material onto the textile or tissue. However, the ability to use polymers to create wearable electronics has transformative potential to become a disruptive technology. This proposal aims to create a conductive polymer with elastomeric properties such that it has enhanced materials properties and can therefore be applied directly as scaffold for smart textile creation. At the same time, due to the high interest in the conductive polymer modification field, the researcher exploits the possibility to collaborate with group members and exploit the alternate time of remote-working/laboratory-working, by design and synthesize coherent conductive monomers for tissue applications.
From the beginning of the project the researcher has synthetized dialkynes and dithiols as building-blocks for conductive materials. The synthesis took more than the expected (more than one year as expected from WP1) due to the Covid-19 pandemic that has stop France 3 months from March to June 2020. Later the entrance of the laboratories was limited and the creation of the polymers was also slowed down. Anyhow a library of polymers has been created and the conductivity, as principal characteristic of any conductive materials has been measured on all the samples.
Then an integration of the objectives and aims has been done, taking into account that the planned schedule would have been impossible to follow due to lack of time and human interactions. Intra-group works have been implemented and fruitful collaborations have been realized. Two research papers have been published in collaboration with other members of the group, inherently to conjugated thiophene-based polymers as TEXTHIOL designed. A very fertile interaction started with Prof. Eleni Pavlopoulou a past member of the group now in IESL-FORTH Krete, Greece. Thanks to her the researcher had the possibility to collaborate in the European project #800926 HyPhOE.
The main dissemination was through two ways: conferences and via web.
Unluckily the pandemic slows down the presential presentation of works, anyhow two presentations has been done during TEXTHIOL: a poster presentation at Berlin (Germany) in the FPi14 conference in the month of July-2019 and at the end of the project in the month of April-2021 via an oral presentation in the PMSE section of ACS Spring 2021 hold remotely.
During the whole project, systematically the CNRS section of Bordeaux and the LCPO webpage (https://www.lcpo.fr/) were posting as news the acceptance of all the article included in the project. A newsletter parallelly is send to every member of CNRS hint all the publications and notable events.
A library of novel thiol-ynes polymers have been synthesize as expected from the project. Due to the special pandemic conditions of 2020 fruitful collaborations have been established. This made rise different new conductive monomers, specially design for innovative conductive polymers, either easily post-functionalizable or polymerizable in vivo by plants. A review has been chosen as right inclusion in the project due to the impossibility of laboratory presential working during French lockdown (March-June 2020).
Table of content of second publication
Table of content of third publication
Resume of synthesized polymers
Table of content of first publication