四氢呋喃和环氧氯丙烷交替共聚醚的合成研究
Study on synthesis of alternating copolyether of tetrahydrofuran and epichlorohydrin
田驰 1胡鹏涛 1朱元康 1周立民1
作者信息
- 1. 武汉工程大学材料科学与工程学院,湖北武汉 430205
- 折叠
摘要
以四氢呋喃和环氧氯丙烷为原料,以四氟硼酸二氟氧硼二苯基锍为引发剂,制备四氢呋喃-环氧氯丙烷交替共聚醚.通过傅里叶变换红外光谱和核磁共振波谱等表征方法,确定所得共聚醚为交替共聚醚.通过差示扫描量热分析得到交替共聚醚的玻璃化转变温度为-63 ℃.制备的交替共聚醚的特性黏度为25.8 dL/g.最佳反应条件为:反应温度20℃,反应时间8 h,四氢呋喃与环氧氯丙烷的摩尔比为1∶1,单体与引发剂的摩尔比为200∶1.
Abstract
The alternating copolyether of tetrahydrofuran and epichlorohydrin was prepared from tetrahydrofuran and epichlorohydrin using difluoroxyboron diphenylsulonium tetrafluoroborate as initiator The resulting copolyether was identified as alternating copolyether by characterization methods including Fourier transform infrared spectroscopy,nuclear magnetic resonance spectroscopy and so on.The glass transition temperature of the alternating copolyether was determined to be-63 ℃ by differential scanning calorimetry analysis.The intrinsic viscosity of the prepared alternating copolyether was 25.8 dL/g.The optimal reaction conditions were as follows:the reaction temperature was 20 ℃,the reaction time was 8 h,the molar ratio of tetrahydrofuran to epichlorohydrin was 1∶1,and the molar ratio of the monomer to the initiator was 200∶1.
关键词
四氢呋喃/环氧氯丙烷/四氢呋喃-环氧氯丙烷交替共聚醚/四氟硼酸二氟氧硼二苯基锍Key words
tetrahydrofuran/epichlorohydrin/alternating copolyether of tetrahydrofuran and epichlorohydrin/difluoroxyboron diphenylsulfonium tetrafluoroborate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据