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    Université de Fribourg

    The influence of substituents on gelation and stacking order of oligoaramid – based supramolecular networks

    Drechsler, Susanne ; Balog, Sandor ; Kilbinger, Andreas F. M. ; Casalini, Tommaso

    In: Soft Matter, 2019, vol. 15, no. 36, p. 7250–7261

    Self-assembly has proven to be a powerful tool for functional, smart materials such as hydrogels derived from low molecular weight compounds. However, the targeted design of functional gelators remains difficult. Here, we present a set of four Y-shaped aromatic amide tetramers with varying functionalities able to undergo different non- covalent interactions. These compounds were explored...

    Université de Fribourg

    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.

    In: Polymer Chemistry, 2019, vol. 10, no. 16, p. 2057–2063

    This paper deals with the synthesis and investigation of comb-like poly(norbornene)s carrying lateral rod-like aramid groups. Two types of norbornene-based monomers were synthesized and copolymerized with a norbornene carrying an aliphatic side chain using ring opening metathesis polymerization (ROMP). The new monomers contain aramid derivatives that display different types of non-covalent...

    Université de Fribourg

    Facile synthesis of a high molecular weight amphiphilic aramid–ROMP block copolymer

    Badoux, Michael ; Drechsler, Susanne ; Pal, Subhajit ; Kilbinger, Andreas F. M.

    In: Macromolecules, 2017, vol. 50, no. 23, p. 9307–9314

    Herein we report the facile synthesis of an amphiphilic rod–coil block copolymer obtained by the coupling of an amine-terminated poly(dimethylpropylamine norbornene imide) (PDMAPNI) and a pentafluorophenol ester-terminated poly(dimethoxybenzyl p-aminobenzoate) (PAram). Postpolymerization amide N- deprotection of the block copolymer yielded a strongly aggregating water-soluble rod– coil...