The electrically conductive polymer with Self-healing and shape-memory features based on Polyketones/MWCNT composite through hydrogen bonding and thermoreversible Diels-Alder interactions

Kaveh, Mahsa (2020) The electrically conductive polymer with Self-healing and shape-memory features based on Polyketones/MWCNT composite through hydrogen bonding and thermoreversible Diels-Alder interactions. Master's Thesis / Essay, Chemical Engineering.

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Abstract

An emerging type of intelligent material is the so-called shape-memory materials (SM). SM can respond to particular external stimuli by changing their shape in a dependable and reproducible way. This study aimed to prepare an electrically conductive polymer nanocomposite with shape-memory (SM), and self-healing (SH) features based on furan modified polyketones (Pk-fu) and multiwall carbon nanotubes (MWCNTs). The polymer composites went through 25% of furan modifications and crosslinked by thermoreversible Diels-Alder cycloaddition between furan and maleimide moieties. For the purpose of improving properties, various formulations, including polyketones grafted with OH groups as a thermoplastic polymer, were explored. First, the physical and chemical characteristics of samples were established through characterization techniques, including 1H-NMR, FTIR, TGA, and rheology. It was determined that the samples with the additional of Pk-OH exhibited more and faster shape recovery due to the presence of hydrogen bonding. Finally, qualitatively and quantitively, the SH properties were examined. The results demonstrated that the modulus of the sample drops significantly by applying the scar. However, they could recover their mechanical properties after the SH procedure. This study presented a multifunctional polymer nanocomposite with the potential to be used in functional applications such as actuators.

Item Type:	Thesis (Master's Thesis / Essay)
Supervisor name:	Picchioni, F. and Bose, R.K.
Degree programme:	Chemical Engineering
Thesis type:	Master's Thesis / Essay
Language:	English
Date Deposited:	20 Mar 2020 13:10
Last Modified:	20 Mar 2020 13:10
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/21663

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