Issue 61, 2017

One-pot synthesis of self-healable and recyclable ionogels based on polyamidoamine (PAMAM) dendrimers via Schiff base reaction

Abstract

Novel ionogels with covalent polymeric networks based on polyamidoamine (PAMAM) dendrimers have been synthesized by the in situ crosslinking of amines via Schiff base reaction in the ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIM][OAc]). The obtained ionogels have excellent self-healing ability and recyclability. Rheological measurements revealed that the plateau modulus in storage modulus increases with increasing dendrimer content, and increasing generation of dendrimers results in the decrease of the plateau modulus due to geometrical reasons. The ionogels are very stable, and the reversible covalent networks are not destroyed at temperatures up to 160 °C, as indicated by dynamic temperature sweep measurements. Remarkably, the ionogels exhibit high ionic conductivity, and room-temperature ionic conductivity can reach 10−2 S cm−1. These self-healable and recyclable ionogels with high conductivity, good mechanical properties, and easy processability are desirable for flexible electronic devices with superior lifespans.

Graphical abstract: One-pot synthesis of self-healable and recyclable ionogels based on polyamidoamine (PAMAM) dendrimers via Schiff base reaction

Supplementary files

Article information

Article type
Paper
Submitted
21 6 2017
Accepted
24 7 2017
First published
07 8 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 38765-38772

One-pot synthesis of self-healable and recyclable ionogels based on polyamidoamine (PAMAM) dendrimers via Schiff base reaction

X. Zhao, S. Guo, H. Li, J. Liu, C. Su and H. Song, RSC Adv., 2017, 7, 38765 DOI: 10.1039/C7RA06916B

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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