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    • 9. 发明授权
    • Polymerization of energetic, cyclic ether monomers using boron
trifluoride tetrahydrofuranate
    • 使用三氟化硼四氢化物聚合能量较高的环醚单体
    • US5468841A
    • 1995-11-21
    • US226919
    • 1994-04-13
    • Aslam A. MalikThomas G. ArchibaldRoland P. CarlsonGerald E. Manser
    • Aslam A. MalikThomas G. ArchibaldRoland P. CarlsonGerald E. Manser
    • C08G65/22
    • C08G65/22
    • The present invention provides an improved method of carrying out cationic polymerization of cyclic ether monomers substituted with high-energy, electron-withdrawing pendant groups (e.g., BAMO and NMMO). Such cyclic ether monomers are polymerized with an initiator precursor (i.e., an alcohol) and boron trifluoride tetrahydrofuranate (BF.sub.3 .cndot.THF). It has been discovered that when boron trifluoride tetrahydrofuranate is used as a catalyst in the cationic polymerization of cyclic ether monomers substituted with high-energy, electron-withdrawing pendant groups (e.g., BAMO and NMMO), polymers are produced that have improved functionality and low poly-dispersity. The polymers formed using the method of the present invention are useful for forming cross-linked elastomers which, in turn, are useful for forming elastomeric binders for high-energy compositions, such as propellants, explosives, gasifiers or the like.
    • 本发明提供了用高能吸电子侧基(例如BAMO和NMMO)取代的环醚单体进行阳离子聚合的改进方法。 这种环醚单体与引发剂前体(即醇)和三氟化硼四氢硼酸酯(BF 3,THF)聚合。 已经发现,当用高能吸电子侧基(例如BAMO和NMMO)取代的环醚单体的阳离子聚合中使用四氟化硼作为催化剂时,产生具有改进的官能度和低的聚合物 多分散性 使用本发明的方法形成的聚合物可用于形成交联的弹性体,其又可用于形成用于高能组合物的弹性体粘合剂,例如推进剂,爆炸物,气化器等。