Polymers Containing Highly Polarizable Conjugated Side Chains as High-Performance All-Organic Nanodielectric Materials
作者:Yali Qiao、Mohammed Sayful Islam、Kuo Han、Eric Leonhardt、Jiuyang Zhang、Qing Wang、Harry J. Ploehn、Chuanbing Tang
DOI:10.1002/adfm.201300736
日期:2013.12.5
The discovery of nanodipolar π‐conjugated oligomer‐containing polymers as high performance nanodielectric materials with high permittivity and low dielectric loss over a wide range of frequency (100 Hz–4 MHz) is reported. Terthiophene‐containing methacrylate polymers are synthesized by reversible addition fragmentation transfer (RAFT) polymerization. Both X‐ray and thermal studies indicate the formation
纳米偶极π的发现据报道,含共轭低聚物的聚合物作为高性能纳米介电材料,在很宽的频率范围(100 Hz–4 MHz)内具有高介电常数和低介电损耗。含对噻吩的甲基丙烯酸酯聚合物是通过可逆的加成断裂转移(RAFT)聚合反应合成的。X射线和热学研究均表明,分散在无定形基质中的对噻吩侧链的小晶域形成。据信,来自纳米级晶域(<2 nm)的高度极化和快速响应的纳米偶极子决定了性能。这些聚合物独特地满足了二十年前推测用于指导高性能纳米介电材料设计的纳米偶极结构。