| Synthesis and characterization of diblock copolymer of butadiene and 2-ethyl-2-oxazoline |
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| 作者姓名： | 徐胜清 黄葆同 |
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| 作者单位： | Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChinaandthePolymerPhysicsLaboratoryofChangchunInstituteofAppliedChemistry ,ChineseAcademyofSciences |
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| 摘 要： | Ｂｌｏｃｋｃｏｐｏｌｙｍｅｒｓａｓｉｄｅａｌｃｏｍｐａｔｉｂｉｌｉｚｅｒｓｈａｖｅｆｏｕｎｄｗｉｄｅａｐｐｌｉｃａｔｉｏｎｓｉｎｐｏｌｙｍｅｒｂｌｅｎｄｓ.Ｆｏｒｂｌｏｃｋｃｏｐｏｌｙｍｅｒｓｃｏｎｔａｉｎｉｎｇｐｏｌａｒｂｌｏｃｋｓ,ｉｔｓａｄｄｉｔｉｏｎｔｏａｂｌｅｎｄｃｏｎｔａｉｎｉｎｇｐｏｌａｒｃｏｍｐｏｎｅｎｔｓｌｅａｄｓｔｏｔｈｅｄｅｃｒｅａｓｅｉｎｉｎｔｅｒｆａｃｉａｌｔｅｎｓｉｏｎｂｅｔｗｅｅｎｔｈｅｉｍｍｉｓｃｉｂｌｅｐｈａｓｅｓｏｆｔｈｅｂｌｅｎｄ,ｔｈｅｉｎｃｒｅａｓｅｉｎｃ…
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| 收稿时间： | 10 September 1997 |
Synthesis and characterization of diblock copolymer of butadiene and 2-ethyl-2-oxazoline |
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| Shengqing Xu,Baotong Huang.Synthesis and characterization of diblock copolymer of butadiene and 2-ethyl-2-oxazoline[J].Science in China(Chemistry),1998,41(2):194-201. |
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| Authors: | Shengqing Xu Baotong Huang |
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| Institution: | (1) Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China |
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| Abstract: | By mechanism-transformation (anionic → cationic) polymerization, diblock copolymer of butadiene and 2-ethyl-2-oxazoline (PBd-b-PEOx)
was synthesized in two steps. The first step is the polymerization of butadiene block capped with ethylene oxide and its tosylation;
the second step is the cationic ring-opening polymerization of 2-ethyl-2-oxazoline. The products were characterized by various
methods, such as IR,1HNMR, DMA, TEM and SAXS. The results show that the obtained copolymers possess high molecular weight and narrow molecular
weight distribution, and that the content of 1, 4-structure was controllable.
Project supported by the National Natural Science Foundation of China and the Polymer Physics Laboratory of Changchun
Project supported by the National Natural Science Foundation of China and the Polymer Physics Laboratory of Changchun |
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| Keywords: | 2-ethyl 2 oxazoline butadiene block copolymer mechanism transformation polymerization charac terization |
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