Multiple-SO3H functioned ionic liquid as efficient curing agent for phthalonitrile-terminated poly(phthalazinone ether nitrile)  

作　　者：Zhi-Huan Weng Yu Qi Li-Shuai Zong Cheng Liu Jin-Yan Wang Xi-Gao Jian 

机构地区：[1]State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China [2]Liaoning High Performance Resin Engineering Research Center,Dalian University of Technology,Dalian 116024,China [3]Department of Polymer Science&Materials,Dalian University of Technology,Dalian 116024,China

出　　处：《Chinese Chemical Letters》2017年第5期1069-1073,共5页中国化学快报（英文版）

基　　金：supported by National Natural Science Foundation of China(No.51273029);the Fundamental Research Funds for the Central Universities(No.DUT15RC(3)032);General Project of Scientific Research of the Education Department of Liaoning Province(No.L2015116);a collaborative project from Guangdong Provincial Key Laboratory of Mineral Physics and Materials(No.GLMPM-010)

摘　　要：Combined with the advantages of low melting point,high thermal stability and strong acidity,a multipleSO_3H functioned ionic liquid（MIL） was developed successfully as a curing agent to promote the curing reaction of phthalonitrile-terminated poly（phthalazinone ether nitrile）（PPEN-Ph）.The curing kinetics over differential scanning calorimetry（DSC） showed that both the initial curing temperature Tp0＇ and apparent activation energy Ea＇（based on Kissinger equation） were reduced significantly over MIL（207.9℃ and 101.5 kJ/mol） compared to the common curing agent ZnCl_2（268.5℃ and 201.5 kJ/mol）.Moreover,under identical curing conditions,the resulting thermosetting resin over former（Td5%=526.1℃） showed better thermal stability than that over latter（Td5%=512.1 ℃）.These results indicated that MIL should be a good candidate as a curing agent for phthalonitrile resins.Combined with the advantages of low melting point,high thermal stability and strong acidity,a multipleSO_3H functioned ionic liquid（MIL） was developed successfully as a curing agent to promote the curing reaction of phthalonitrile-terminated poly（phthalazinone ether nitrile）（PPEN-Ph）.The curing kinetics over differential scanning calorimetry（DSC） showed that both the initial curing temperature Tp0＇ and apparent activation energy Ea＇（based on Kissinger equation） were reduced significantly over MIL（207.9℃ and 101.5 kJ/mol） compared to the common curing agent ZnCl_2（268.5℃ and 201.5 kJ/mol）.Moreover,under identical curing conditions,the resulting thermosetting resin over former（Td5%=526.1℃） showed better thermal stability than that over latter（Td5%=512.1 ℃）.These results indicated that MIL should be a good candidate as a curing agent for phthalonitrile resins.

关 键 词：Ionic liquid Phthalonitrile resin Phthalazinone Thermal stability Curing agent 

分 类 号：TQ320.4[化学工程—合成树脂塑料工业]