【摘要】 在链转移剂S-十二烷基-S′-（α,α′-二甲基-α″-乙酸）-三硫代碳酸酯的调控下,偶氮二异丁腈引发单体2-乙烯基吡啶、苯乙烯和聚乙二醇单甲醚甲基丙烯酸酯连续聚合,制备了含有聚2-乙烯基吡啶（P2VP）、聚苯乙烯（PS）和聚（聚乙二醇单甲醚甲基丙烯酸酯）[P（POEGMA）]链段的三嵌段共聚物P2VP₁₀₅-b-PS₁₈₉-b-P（POEGMA）₂₂ （下标为聚合度）,凝胶渗透色谱法测试结果表明其数均相对分子量为35550,多分散指数为2.10。采用核磁共振氢谱仪、傅里叶变换红外光谱仪对共聚物的结构进行了确认,根据核磁共振氢谱测试结果表明共聚物的数均相对分子量为45500。该三嵌段共聚物依次与溴代正丁烷和双三氟甲基磺酰亚胺锂（LiTFSI）进行季铵化和阴离子交换,得到离子液体共聚物P2VP₁₀₅（Bu）TFSI-b-PS₁₈₉-b-P（POEGMA）₂₂,离子电导率为1.55×10^–3 S/cm。测试结果表明,P（POEGMA）链段的引入可以改善离子液体共聚物的离子传导性,与不含P（POEGMA）链段的离子液体共聚物相比,其离子电导率提高了332.96%。更多还原

【Abstract】 An ABC-type triblock copolymer P2VP₁₀₅-b-PS₁₈₉-b-P（POEGMA）₂₂ （the subscript is the degree of polymerization） was synthesized by the continuous polymerization of 2-vinylpyridine,styrene and poly（ethylene glycol） methyl ether methacrylate （POEGMA）,initiated by 2,2′-azobis（2-methylpropionitrile） under the presence of S-dodecyl-S′–（α,α′-dimethyl-α″-acetic acid）-trithiocarbonate.The testing results of conventional gel permeation chromatography （GPC） show that its number average relative molecular weight is 35550,and its polydispersity index is 2.10.The structure of the copolymer was characterized by proton nuclear magnetic resonance spectroscopy （¹H NMR） and fourier-transform infrared spectroscopy （FTIR）.According to the ¹H NMR test result,the number average relative molecular weight of the copolymer is 45500.The triblock copolymer was quaternized with n-butane bromide and then anion-exchanged with lithium bis（trifluoromethane） sulfonimide to obtain the ABC triblock ionic liquid copolymer P2VP₁₀₅（Bu）TFSI-b-PS₁₈₉-b-P（POEGMA）₂₂,which shows a excellent ionic conductivity of 1.55×10^–3 S/cm.The introduction of P（POEGMA） segment into the copolymer chain can improve the ion conductivity of the ionic liquid block copolymer.Compared with the conductivity of the ionic liquid copolymer without P（POEGMA） segment,the conductivity is increased by 332.96%.更多还原