Phase segregation in supramolecular polymers based on telechelics synthesized via multicomponent reactions
- Sehlinger, Ansgar Laboratory of Applied Chemistry
- Bartnick, Nikolai Laboratory of Applied Chemistry
- Gunkel, Ilja Adolphe Merkle Institute
- Meier, Michael A. R. Laboratory of Applied Chemistry
- Montero de Espinosa, Lucas Adolphe Merkle Institute
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01.11.2017
Published in:
- Macromolecular Chemistry and Physics. - 2017, vol. 218, no. 22, p. 1700302
English
The properties of supramolecular polymers in the solid state are strongly dependent on the binding strength of the supramolecular motifs used; however, It has been previously shown that the nanostructure of supramolecular polymers plays an equally important role. Supramolecular polymers are commonly synthesized via end-group functionalization of low-glass transition telechelics with supramolecular units. In these systems, the binding motifs segregate from the soft telechelic backbone and form a hydrogen bonded crystalline hard phase that provides physical cross-links. To date, the reported synthetic approaches do not permit the introduction of a wide variety of supramolecular units with low synthetic effort, which would facilitate studying the structure-property relationships. The use of the Passerini and Ugi multicomponent reactions to synthesize various poly(ethylene-co-butylene) telechelics with diverse amide end-groups is reported. The thermal properties of the supramolecular polymers obtained through their solid-state assembly are investigated and their nanophase- segregation is studied, which is dictated by the end-group volume fraction and the amide–amide hydrogen bonding.
- Faculty
- Faculté des sciences et de médecine
- Department
- AMI - Physique de la matière molle
- Language
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- English
- Classification
- Chemistry
- License
- License undefined
- Identifiers
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- RERO DOC 322894
- DOI 10.1002/macp.201700302
- Persistent URL
- https://folia.unifr.ch/unifr/documents/307059
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