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In-depth characterization of self-healing polymers based on π-π interactions.

ABSTRACT: The self-healing behavior of two supramolecular polymers based on π-π-interactions featuring different polymer backbones is presented. For this purpose, these polymers were synthesized utilizing a polycondensation of a perylene tetracarboxylic dianhydride with polyether-based diamines and the resulting materials were investigated using various analytical techniques. Thus, the molecular structure of the polymers could be correlated with the ability for self-healing. Moreover, the mechanical behavior was studied using rheology. The activation of the supramolecular interactions results in a breaking of these noncovalent bonds, which was investigated using IR spectroscopy, leading to a sufficient increase in mobility and, finally, a healing of the mechanical damage. This scratch-healing behavior was also quantified in detail using an indenter.

SUBMITTER: Meurer J

PROVIDER: S-EPMC8491711 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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In-depth characterization of self-healing polymers based on π-π interactions.

Meurer Josefine J Hniopek Julian J Ahner Johannes J Schmitt Michael M Popp Jürgen J Zechel Stefan S Peneva Kalina K Hager Martin D MD

Beilstein journal of organic chemistry 20210929

The self-healing behavior of two supramolecular polymers based on π-π-interactions featuring different polymer backbones is presented. For this purpose, these polymers were synthesized utilizing a polycondensation of a perylene tetracarboxylic dianhydride with polyether-based diamines and the resulting materials were investigated using various analytical techniques. Thus, the molecular structure of the polymers could be correlated with the ability for self-healing. Moreover, the mechanical behav ...[more]

PMID: 34646398

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