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    Method for increasing the porosity of a cross-linked copolymer
    82.
    发明授权
    Method for increasing the porosity of a cross-linked copolymer 失效
    提高交联共聚物孔隙率的方法

    公开(公告)号：US4543365A

    公开(公告)日：1985-09-24

    申请号：US694276

    申请日：1985-01-24

    申请人： Takaharu Itagaki ,  Tsuyoshi Ito ,  Kiyoto Ando ,  Hiromi Teshima

    发明人： Takaharu Itagaki ,  Tsuyoshi Ito ,  Kiyoto Ando ,  Hiromi Teshima

    IPC分类号： C08J9/26 ,  C08F6/00 ,  C08F8/00 ,  C08J9/00

    CPC分类号： C08F8/00

    摘要： A method for increasing the porosity of a cross-linked copolymer composed essentially of at least one monovinyl aromatic compound selected from the group consisting of styrene, vinyl toluene and ethyl vinyl benzene, at least one polyvinyl aromatic compound selected from the group consisting of divinyl benzene, trivinyl benzene, divinyl toluene and divinyl xylene, and an aliphatic vinyl compound, wherein the proportion of the polyvinyl aromatic compound relative to the total vinyl compounds is from 8 to 80% by weight, and the proportion of the aliphatic vinyl compound relative to the total vinyl compounds is from 0 to 20% by weight, which method comprises treating particles of said copolymer with a Lewis acid catalyst in an amount of from 0.05 to 1 part by weight relative to 1 part by weight of the copolymer particles, in the presence of an organic solvent.

    摘要翻译： 提高基本上由至少一种选自苯乙烯，乙烯基甲苯和乙基乙烯基苯的单乙烯基芳族化合物组成的交联共聚物的孔隙率的方法，至少一种选自二乙烯基苯的聚乙烯基芳族化合物 三乙烯基苯，二乙烯基甲苯和二乙烯基二甲苯和脂族乙烯基化合物，其中聚乙烯基芳族化合物相对于总乙烯基化合物的比例为8至80重量％，并且脂族乙烯基化合物相对于 总乙烯基化合物为0至20重量％，该方法包括在相对于共聚物颗粒的1重量份的情况下，以相对于共聚物颗粒的1重量份为0.05-1重量份的路易斯酸催化剂处理所述共聚物的颗粒， 的有机溶剂。