Auxetic polymer networks
Towards materials with auxetic behavior at the molecular scale
Project leader: A. Kilbinger
Team: C. Weder, K. Fromm
Auxetic materials expand perpendicular to the direction in which they are stretched and vice versa. In Nature, this phenomenon is observed in certain metals or crystals such as twinned iron pyrite or a-cristobalite, and in the last years several synthetic materials with auxeticety have been reported on the microscopic and macroscopic scales. These include polymeric foams and microporous polymers which can lower their overall (apparent) density via gas exchange with the surrounding atmosphere, and molecular auxetics that are typically based on a change in the packing efficiency of the constituting material, i.e. the creation of voids in order to expand perpendicularly upon stretching. However, no intrinsic (molecular) auxetic behavior has so far been achieved with synthetic polymeric materials. From this standpoint, the goal of this project is the development of intriscically auxetic materials using covalent polymer networks.
- Related publications
Synthesis of telechelic Poly(p-benzamide)s
Alizadeh Mahshid, Kilbinger Andreas F. M.
Macromolecules (2018)Functional metathesis catalyst through ring closing enyne metathesis: One pot protocol for living heterotelechelic polymers
Pal Subhajit, Lucarini Fiorella, Ruggi Albert, Kilbinger Andreas F. M.
Journal of the American Chemical Society (2018)Facile synthesis of a high molecular weight amphiphilic aramid–ROMP block copolymer
Badoux Michael, Drechsler Susanne, Pal Subhajit, Kilbinger Andreas F. M.
Macromolecules (2017)Synthesis of high molecular weight poly(p-benzamide)s
Badoux Michael, Kilbinger Andreas F. M.
Macromolecules (2017)Tandem ring-opening-ring-closing metathesis for functional metathesis catalysts
Nagarkar Amit A., Yasir Mohammad, Crochet Aurelien, Fromm Katharina M., Kilbinger Andreas F. M.
Angewandte Chemie International Edition (2016)Towards polymers with molecular auxeticity
Alizadeh Mahshid, Tennie Iris K., Steiner Ullrich, Kilbinger Andreas F.M.
CHIMIA International Journal for Chemistry (2019)Synthesis and properties of poly(norbornene)s with lateral aramid groups
Kong Phally, Drechsler Susanne, Balog Sandor, Schrettl Stephen, Weder Christoph, Kilbinger Andreas F. M.
Polymer Chemistry (2019)Catalytic living ring-opening metathesis polymerization with Grubbs’ second- and third-generation catalysts
Yasir Mohammad, Liu Peng, Tennie Iris K., Kilbinger Andreas F. M.
Nature Chemistry (2019)The influence of substituents on gelation and stacking order of oligoaramid – based supramolecular networks
Drechsler Susanne, Balog Sandor, Kilbinger Andreas F. M., Casalini Tommaso
Soft Matter (2019)Telechelics based on catalytic alternating ring-opening metathesis polymerization
Pal Subhajit, Alizadeh Mahshid, Kilbinger Andreas F. M.
ACS Macro Letters (2019)One‐step ring opening metathesis block‐like copolymers and their compositional analysis by a novel retardation technique
Yasir Mohammad, Liu Peng, Markwart Jens C., Suraeva Oksana, Wurm Frederik R., Smart Jansie, Lattuada Marco, Kilbinger Andreas F. M.
Angewandte Chemie International Edition (2020)Polymeric 19F MRI Contrast Agents Prepared by Ring-Opening Metathesis Polymerization/Dihydroxylation
Tennie Iris K., Kilbinger Andreas F. M.
- Related projects as project manager
Projects of FROMM Katharina
Projects of WEDER Christoph