Homogeneous synthesis of cellulose ethers in ionic liquids
    2.
    发明申请
    Homogeneous synthesis of cellulose ethers in ionic liquids 有权
    离子液体中纤维素醚的均相合成

    公开(公告)号:US20090221813A1

    公开(公告)日:2009-09-03

    申请号:US12392222

    申请日:2009-02-25

    IPC分类号: C08B11/20

    摘要: The invention is directed to a simple and new method for the homogeneous synthesis of cellulose ethers. Ionic liquids are not only used as solvent, but also as reaction media for the homogeneous etherification of cellulose. The dissolved cellulose is treated with the etherification agent in the absence of organic and/or inorganic bases and in the absence and/or in the presence of moderate amounts of water. The obtained cellulose ethers show new distributions of substitution on the polymer chain, resulting in new properties and applications.

    摘要翻译: 本发明涉及用于纤维素醚的均相合成的简单且新的方法。 离子液体不仅用作溶剂,而且用作纤维素均匀醚化的反应介质。 溶解的纤维素在不存在有机和/或无机碱的条件下,在不存在和/或存在中等量的水的情况下用醚化剂处理。 所获得的纤维素醚在聚合物链上显示出新的取代分布,导致新的性质和应用。