Synthesis of triazole-dendronized polyacetylenes by metathesis cyclopolymerization and their conductivity
Synthesis of triazole-dendronized polyacetylenes by metathesis cyclopolymerization and their conductivity
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DOI：
10.1039/c6py00724d
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发表时间：
2016-07
影响因子：
4.6
通讯作者：
Junfang Wang;Hongfei Li;Xiaojuan Liao;M. Xie;Ruyi Sun
中科院分区：
文献类型：
--
作者：
Junfang Wang;Hongfei Li;Xiaojuan Liao;M. Xie;Ruyi Sun
采用复分解环聚合法制备了一系列具有反式双键和五元环骨架的枝状聚乙炔。枝晶化聚合物具有良好的热稳定性，最高分解温度为330℃；优异的电化学稳定性，电化学稳定窗口宽为6.0 V。同时，枝晶链的柔韧性使聚合物具有刚性共轭主链，最低玻璃化转变温度为- 22.2°C。在掺杂不同比例的LiTFSI后，聚合物的离子电导率均高于其本然电导率，在30°C时，聚合物的离子电导率最高达到4.3 × 10−6 S cm−1。
A series of dendronized polyacetylenes with trans-double bond and five-membered ring backbones were prepared by metathesis cyclopolymerization. The dendronized polymers had good thermal stability with a highest decomposition temperature of 330 °C, and excellent electrochemical stability with a broad electrochemical stability window of 6.0 V. Meanwhile, the flexibility of the dendronized pendants make the polymers have a rigid conjugated backbone exhibiting a lowest glass transition temperature of −22.2 °C. After doping with different ratios of LiTFSI, the ionic conductivity of the polymers was higher than that of their intrinsic ones, and the highest ionic conductivity of the polymers reached 4.3 × 10−6 S cm−1 at 30 °C.