Enhanced dielectric and electrical energy storage capability of polymers with combined azobenzene and triphenylamine side groups by ring-opening metathesis polymerization
作者： Yu Zhu , Fengwang Ma , Cuihong Ma , Huijing Han , Ruyi Sun
DOI: 10.1016/J.POLYMER.2019.121886
关键词: Dielectric 、 Triphenylamine 、 Azobenzene 、 Polymer 、 Ring-opening metathesis polymerisation 、 Polymerization 、 Dielectric loss 、 Photochemistry 、 Metathesis 、 Materials science
摘要: Abstract Polymers with strong polar side groups of combined push-pull azobenzene and triphenylamine were synthesized by ring-opening metathesis polymerization, exhibited excellent dielectric energy storage properties mainly due to highly dipolar polarization. The constant polymer containing one group was 13.5, which enhanced 15.7 when two incorporated into in virtue its higher dipole density. Besides, the loss polymers lowered 0.004–0.025, stored-energy density can reach up 5.09 J cm−3 at electric field strength 270 MV m−1 good charge-discharge efficiency 86.4%. Therefore, are promising for electrical applications.
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