BTA and HBTA: attractive dianhydrides towards soluble and colourless polyimides

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With the increasing interest in polyimide (PI) films for microelectronic and optoelectronic fabrications, Valsynthese dianhydrides, BTA and HBTA have been tested in the synthesis of polyimides to address their strength in this field. A colourless PAA-varnish solution was obtained with HBTA, which makes this material, combined with its thermal properties, highly attractive for optoelectronic devices. However, colourless PIs, as well as the fully aromatic ones, show very poor solubility, resulting in difficult processability when PI-Varnish solutions are preferred. A sulfonate polyimide with BTA dianhydride was synthesized, showing exceptionally high value of solubility, making it suitable for nanofabrication. 

Marta Falcone

Marta Falcone is an organic chemist by training, graduated with honors at the University of Pisa in 2011. She moved towards coordination chemistry for her PhD, at École polytechnique fédérale de Lausanne (EPFL), in the group of Prof. M. Mazzanti, working on small molecule activation by molecular uranium complexes. She was rewarded with the ISIC price (best doctoral thesis award in Chemistry and Chemical Engineering) for the contribution to fundamental chemistry and possible application in dinitrogen conversion, with several publications in important journals such as Nature and Nature Chemistry. After the PhD she won the grant from the Swiss National Science Foundation (SNSF) for young researchers and started a postdoc at Max Plank (Germany) in homogeneous catalysis.
She has also been awarded from the Weizmann Institute (Israel) with Dimitris N. Chorafas Foundation Award for outstanding work in science.
After few months she had the opportunity to start working in industry and left the academic path. Currently she works as a project leader in the R&D department of Valsynthese, the fine chemical division of SSE company, in Brig, Switzerland.