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    • 8. 发明授权
    • Polyrotaxane and process for producing the same
    • 聚轮烷及其制备方法
    • US07847049B2
    • 2010-12-07
    • US10580795
    • 2004-11-24
    • Kohzo ItoJun ArakiChangming Zhao
    • Kohzo ItoJun ArakiChangming Zhao
    • C08F251/00
    • C08G65/332C08B37/0015C08G83/007C08L5/16C08L71/02C08L2666/14
    • A process for producing a polyrotaxane in a high yield and at a satisfactory cost without using a large excess of a pseudopolyrotaxane and/or without using a large excess of an activated reagent. The process for polyrotaxane production comprises: an inclusion step in which a carboxylated polyethylene glycol which is a polyethylene glycol carboxylated at each end is mixed with cyclodextrin molecules to obtain a pseudopolyrotaxane which comprises cyclodextrin molecules which include the carboxylated polyethylene glycol in their cavities as if the cyclodextrin molecules are spitted with the carboxylated polyethylene glycol; and a capping step in which the pseudopolyrotaxane is reacted with capping groups having —NH2 or —OH to obtain a polyrotaxane terminated at each end by a —CO—NH-(capping group) or —CO—O-(capping group).
    • 一种以高产率和令人满意的成本生产聚轮烷的方法,而不使用大量过量的预聚轮烷和/或不使用大量过量的活化剂。 聚轮烷生产方法包括:包含步骤,其中将在每端羧化的聚乙二醇的羧化聚乙二醇与环糊精分子混合以获得包含环糊精分子的假聚轮烷,所述环糊精分子在其空腔中包括羧化聚乙二醇,如同 环糊精分子与羧化聚乙二醇分散; 和封端步骤,其中准聚轮烷与具有-NH 2或-OH的封端基团反应,得到每端用-CO-NH-(封端基团)或-CO-O-(封端基团)封端的聚轮烷。