Bimodal Polymer Brush Core–Shell Barium Titanate Nanoparticles: A Strategy for High-Permittivity Polymer Nanocomposites

Content Provider	Semantic Scholar
Author	Qiao, Yali Yin, Xiaodong Wang, Lei Ping Islam, Sayful Benicewicz, Brian Ploehn, Harry J. Tang, Chuanbing
Copyright Year	2015
Abstract	This paper presents a novel strategy to modify the surface chemistry of barium titanate (BaTiO3, BT) with a bimodal population of oligothiophene polymer brushes using step-by-step reversible addition–fragmentation chain transfer (RAFT) polymerization. Compared with a previous strategy based on monomodal surface-tethered brushes, these hybrid nanoparticles, BaTiO3 coated with bimodal oligothiophene polymer brushes, demonstrate extremely good dispersion behaviors as dielectric nanofillers in a matrix of oligothiophene polymers. These nanodielectric composites exhibit greatly improved dielectric performance and maintain linear displacement–polarization (D–E) profiles under high applied electric fields. This promising bimodal strategy could be generalized to a variety of nanoparticles for the development of novel dielectric nanocomposite systems.
Starting Page	8998
Ending Page	9006
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1021/acs.macromol.5b02018
Volume Number	48
Alternate Webpage(s)	http://www.benicewiczgroup.com/UserFiles/benigroup/Documents/BB123.pdf
Alternate Webpage(s)	https://doi.org/10.1021/acs.macromol.5b02018
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article