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Thiophene Polymer-Grafted Barium Titanate Nanoparticles toward Nanodielectric Composites
作者:Yali Qiao, Md. Sayful Islam, Lei Wang, Yi Yan, Jiuyang Zhang, Brian C. Benicewicz, Harry J. Ploehn,
关键字:Thiophene, Barium Titanate, Nanodielectric
论文来源:期刊
具体来源:Chem. Mater. 2014, 26, 5319?5326
发表时间:2014年
    This paper reports a strategy for controlling surface chemistry of barium titanate (BaTiO3 ) using surfaceinitiated reversible addition?fragmentation chain transfer (RAFT) polymerization of an oligothiophene monomer. The modular chemistry on the engineering of nanoparticles provides a facile pathway to compatibilizing dielectric nano?llers in a matrix of oligothiophene polymers, leading to the formation of nanodielectric composites with permittivity at ~20 and dielectric loss <0.02 over a wide range of frequencies (1 kHz to 1 MHz). This approach could be generalized to a variety of nanoparticles with tunable dipolar polymer shells for the development of novel dielectric nanocomposite systems for energy storage.