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- Title
Covalently Trapped Triarylamine‐Based Supramolecular Polymers.
- Authors
Liang, Ting; Collin, Dominique; Galerne, Melodie; Fuks, Gad; Vargas Jentzsch, Andreas; Maaloum, Mounir; Carvalho, Alain; Giuseppone, Nicolas; Moulin, Emilie
- Abstract
C3‐Symmetric triarylamine trisamides (TATAs), decorated with three norbornene end groups, undergo supramolecular polymerization and further gelation by π–π stacking and hydrogen bonding of their TATA cores. By using subsequent ring‐opening metathesis polymerization, these physical gels are permanently crosslinked into chemical gels. Detailed comparisons of the supramolecular stacks in solution, in the physical gel, and in the chemical gel states, are performed by optical spectroscopies, electronic spectroscopies, atomic force microscopy, electronic paramagnetic resonance spectroscopy, X‐ray scattering, electronic transport measurements, and rheology. The results presented here clearly evidence that the core structure of the functional supramolecular polymers can be precisely retained during the covalent capture whereas the mechanical properties of the gels are concomitantly improved, with an increase of their storage modulus by two orders of magnitude.
- Subjects
SUPRAMOLECULAR polymers; RESONANCE ionization spectroscopy; PARAMAGNETIC resonance; ATOMIC force microscopy; OPTICAL spectroscopy; RING-opening polymerization
- Publication
Chemistry - A European Journal, 2019, Vol 25, Issue 63, p14341
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201902404