Project

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Functional Supramolecular Polymers

English title Functional Supramolecular Polymers
Applicant Jenny Titus
Number 129656
Funding scheme Project funding (Div. I-III)
Research institution Département de Chimie Université de Fribourg
Institution of higher education University of Fribourg - FR
Main discipline Organic Chemistry
Start/End 01.06.2010 - 30.09.2011
Approved amount 45'392.00
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All Disciplines (2)

Discipline
Organic Chemistry
Material Sciences

Keywords (6)

supramolecular chemistry; auto-assembly; polycondensed aromatic hydrocarbon; columnar stacks; proton-conducting membrane; poly-condensed aromatic hydrocarbons

Lay Summary (English)

Lead
Lay summary
The project proposes the fabrication of a new type of selective proton permeable membrane, by combining a supramolecular organized functionalized monomer with a suitable support. This device is intended to mimic the function of Nafion®, the most widely used membrane material in fuel cells, but to excel this material with respect to durability under working conditions.The concept involves a alkyl/perfluoroalkyl substituted HBC derivative, in which one out of six side chains is terminating in a sulfonic acid function. The pronounced stacking behavior of the HBC core should organize this molecule in a supramolecular structure exhibiting long and aligned ion conducting channels. Deposition of this material on a Teflon® coated porous support would then yield the desired proton permeable membrane.Based on previous own research in the field, important intermediates in the challenging synthesis of the target compound have already been achieved. However, a few crucial steps still need to be developed, before the material could be deposited on a suitable support and tested for its intended function.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Name Institute

Associated projects

Number Title Start Funding scheme
139147 R'Equip grant proposal for a MALDI ToF mass spectrometer 01.04.2012 R'EQUIP
119914 Functional Supramolecular Polymers 01.06.2008 Project funding (Div. I-III)

Abstract

The project proposes the fabrication of a new type of selective proton permeable mem-branes, by combining a supramolecular organized functionalized monomer with a suitable support. This device is intended to mimic the function of Nafion®, the most widely used membrane material in fuel cells, but to excel this material with respect to durability under working conditions.The concept involves a alkyl/perfluoroalkyl substituted HBC derivative, in which one out of six side chains is terminating in a sulfonic acid function. The pronounced stacking be-havior of the HBC core should organize this molecule in a supramolecular structure exhib-iting long and aligned ion conducting channels. Deposition of this material on Teflon® coated porous support would then yield the desired proton permeable membrane.Based on previous own research in the field, important intermediates in the challenging synthesis of the target compound have already been achieved. However, a few crucial steps still need to be developed, before the material could be deposited on a suitable support and tested for its intended function.
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