He Yashu, Wang Jingting, Sirotin Igor S, Kireev Vyacheslav V, Mu Jianxin
Key Laboratory of High Performance Plastics, Ministry of Education, National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Faculty of Petrochemistry and Polymer Materials, Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047 Moscow, Russia.
Polymers (Basel). 2021 Oct 11;13(20):3489. doi: 10.3390/polym13203489.
This study reports on a series of crosslinked poly(arylene ether)s with POSS in the main chain. The fluorinated and terminated poly(arylene ether)s were first synthesized by the nucleophilic reaction of diphenol POSS and decafluorodiphenyl monomers, including decafluorobiphenyl, decaflurobenzophenone, and decafluorodiphenyl sulfone. They were then reacted with 3-hydroxyphenyl acetylene to produce phenylacetylene-terminated poly(arylene ether)s. The polymers were of excellent processability. When heated to a high temperature, the polymers converted into a crosslinked network, exhibiting a low range of dielectric constant from 2.17 to 2.58 at 1 HMz, strong resistance against chemical solutions, low dielectric losses, and good thermal and hydrophobic properties.
本研究报道了一系列主链含POSS的交联聚亚芳基醚。首先通过二酚基POSS与十氟二苯基单体（包括十氟联苯、十氟二苯甲酮和十氟二苯砜）的亲核反应合成了氟化且封端的聚亚芳基醚。然后使其与3-羟基苯乙炔反应生成苯乙炔封端的聚亚芳基醚。这些聚合物具有优异的加工性能。当加热到高温时，聚合物转变为交联网络，在1 HMz下介电常数低至2.17至2.58，对化学溶液具有很强的抗性，介电损耗低，且具有良好的热性能和疏水性能。
