Novel Biobased Self‐Healing Ionomers Derived from Itaconic Acid Derivates

Abstract

This article presents novel biobased ionomers featuring self‐healing abilities. These smart materials are synthesized from itaconic acid derivates. Large quantities of itaconic acid can be produced from diverse biomass like corn, rice, and others. This study presents a comprehensive investigation of their thermal and mechanical properties via differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA), and FT‐Raman and FT‐IR measurements as well as dynamic mechanic analysis. Within all these measurements, different kinds of structure‐property relationships could be derived from these measurements. For example, the proportion of ionic groups enormously influences the self‐healing efficiency. The investigation of the self‐healing abilities reveals healing efficiencies up to 99% in 2 h at 90 °C for the itaconic acid based ionomer with the lowest ionic content.

Application of orthogonal metal–ligand interactions for the synthesis of interpenetrating metallopolymer networks featuring shape-memory and self-healing abilities

“…Self-healing studies were performed according to literature procedures. 41,42 A detailed description is presented in the ESI. †…”

“…In order to perform these measurements, samples of all IPNs were prepared analogously to a literature procedure 41,42 (further information see ESI †). Subsequently, the surface of the sample was damaged utilizing an indenter resulting in a dened scratch.…”

Dynamic ionic behavior of gel-free diolefin rubber-based carboxylate ionomers preparedviaolefin metathesis

“…An ionomer refers to one type of salt polymer that contains a small amount of suspended acid groups (o10% mole fraction) on the molecular backbone, and these acid groups are partially or completely neutralized with alkali metal hydroxides or oxides. [9][10][11] For ionomers, the multi-ion-pair cluster structure induced by the electrostatic interaction or complexation among metal ions can afford polymer materials with some special properties such as memory, self-healing and water absorption. [12][13][14][15][16][17] The formed dynamic ionic network can make the material have certain environmental recyclability.…”