Topological structure enhanced nanostructure of high temperature polymer exhibiting more than ten times enhancement of dipolar response

Xin Chen; Tiannan Yang; Qiyan Zhang; L. Q. Chen; Vid Bobnar; C. Rahn; Q. M. Zhang

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Topological structure enhanced nanostructure of high temperature polymer exhibiting more than ten times enhancement of dipolar response

Nanofillers in polymer composites will induce interface regions in the polymer with non-uniform nanostructures which can be approximated as multilayer shells surrounding nanofillers. This paper studies topological nanostructures in polymers that interface with one-dimensional (1-D) and zero-dimensional (0-D) nanofillers. This new class of dielectric polymer nanocomposites involves nanofillers at ultra-low volume loading (< 1 vol percent) that generate large dielectric enhancement. The results show that the dipolar response of polyetherimide, a high temperature dielectric polymer, is increased by more than ten times with ultra-low (0.75 vol%) loading of 1-D nanofillers. The results reveal that 1-D nanofillers induce cylindrical shell-topology in the polymer matrix which is more effective in enhancing the high dielectric constant interfacial region than the spherical shell-topology generated by 0-D fillers. The cylindrical shells generated by 1-D fillers provide much higher dielectric enhancement over a broader interfacial region in the polymer matrix, as compared to the spherical shells induced by 0-D nanofillers.

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Work Title	Topological structure enhanced nanostructure of high temperature polymer exhibiting more than ten times enhancement of dipolar response
Access	Open Access
Creators	Xin Chen Tiannan Yang Qiyan Zhang L. Q. Chen Vid Bobnar C. Rahn Q. M. Zhang
License	CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives)
Work Type	Article
Publisher	Nano Energy
Publication Date	June 6, 2021
Publisher Identifier (DOI)	https://doi.org/10.1016/j.nanoen.2021.106225
Deposited	November 23, 2021

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Topological structure enhanced nanostructure of high temperature polymer exhibiting more than ten times enhancement of dipolar response

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Topological structure enhanced nanostructure of high temperature polymer exhibiting more than ten times enhancement of dipolar response

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