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    • 6. 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。
    • 9. 发明授权
    • Materials having crosslinked polyrotaxane and process for producing the same
    • 具有交联聚轮烷的材料及其制造方法
    • US07612142B2
    • 2009-11-03
    • US11579842
    • 2005-05-06
    • Kohzo ItoJun Araki
    • Kohzo ItoJun Araki
    • C08G63/48
    • C08B37/0012B01J20/26B01J20/267C08B37/0015C08G83/00C08G83/007
    • A material having crosslinked polyrotaxane which has further improved swelling properties, especially one having a crosslinked polyrotaxane which changes in swelling property with change in pH; and a material having a crosslinked polyrotaxane which is responsive especially at a high speed to a change of the surrounding electric field. The materials have a crosslinked polyrotaxane comprising at least two polyrotaxane molecules which each comprises cyclic molecules, a linear molecule which includes the cyclic molecules in cavities of cyclic molecules in a skewered manner, and capping groups, each of which locates at each end of the linear molecule in order to prevent the dissociation of the cyclic molecules, the least two polyrotaxane molecules having been bound to each other through a chemical bonding between the cyclic molecules thereof, wherein the cyclic molecules have hydroxy groups (—OHs) and part of the hydroxy groups are substituted with a group having an ionic group.
    • 具有交联聚轮烷的材料,其具有进一步改善的溶胀性,特别是具有随pH变化而溶胀性变化的交联聚轮烷的材料; 以及具有交联聚轮烷的材料,其特别是高速响应于周围电场的变化。 该材料具有包含至少两个聚轮烷分子的交联聚轮烷,每个聚轮烷分子各自包含环状分子,以串列方式在环状分子的空腔中包含环状分子的直链分子和封端基团,每个分子位于线性的每个末端 分子,以防止环状分子的解离,至少两个聚轮烷分子通过其环状分子之间的化学键合彼此结合,其中环状分子具有羟基(-OH)和部分羟基 被具有离子基团的基团取代。