Benzoxazine-Based Thermoset with Autonomous Self-Healing and Shape Recovery

Mustafa Arslan, Baris Kiskan*, Yusuf Yagci

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

A novel approach is reported for self-healing of polybenzoxazine thermosets based on both supramolecular attractions and metal-ligand interactions. The relating smart material was synthesized by using bis(3-aminopropyl)-terminated polydimethylsiloxane, formaldehyde, and bisphenol A. The films of the obtained main-chain polybenzoxazine precursor (Poly(Si-Bz)) containing 2% FeCl3 were prepared and cured at low temperatures (100-120 °C). The structures of the precursors and final products were characterized by spectral analysis. The curing and thermal stability of the related materials were investigated by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). Self-healing efficiency was studied by stress-strain measurements. Potential shape recovery (SR) behavior was also demonstrated by preparing curled or spiral fixed shapes, and the transformation of temporary shapes to these fixed shapes was verified.

Original languageEnglish
Pages (from-to)10095-10103
Number of pages9
JournalMacromolecules
Volume51
Issue number24
DOIs
Publication statusPublished - 26 Dec 2018

Bibliographical note

Publisher Copyright:
© 2018 American Chemical Society.

Funding

The authors thank the Istanbul Technical University Research Fund and Oguz Okay (Istanbul Technical University) for providing the infrastructure to measure mechanical properties.

FundersFunder number
Istanbul Technical University Research Fund
Istanbul Teknik Üniversitesi

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