Adsorption-desorption method for the separation of water soluble organic compounds from aqueous solution
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0161882A2
公开(公告)日:1985-11-21
An adsorbent is obtained by water-insolubilizing a homopolymer of one of N,N-di-substituted (meth)acrylamides represented by the structural formula given herein, a copolymer of two or more of the N,N-di-substituted (meth)-acrylamides or a copolymer of one or more of the N,N-di--substituted (meth)acrylamides and one or more copolymerizable monomers other than the N,N-di-substituted (meth)--acrylamides, said (meth)acrylamides being represented by the formulae:
or
wherein Rl stands for a hydrogen atom or methyl group, A stands for ―(CH2)n―, n being 4 - 6, or ―(CH2)2 0 ―(CH2)―, and Rz denotes a methyl or ethyl group. The adsorbent has the property that it is hydrophobicized to have higher adsorbability when heated and its adsorbability drops when cooled.
一种吸附剂是通过将本文给出的结构式所代表的一种 N,N-二取代(甲基)丙烯酰胺的均聚物、两种或两种以上 N、N,N-二取代(甲基)丙烯酰胺的均聚物、两种或多种 N,N-二取代(甲基)丙烯酰胺的共聚物,或一种或多种 N,N-二取代(甲基)丙烯酰胺与一种或多种 N,N-二取代(甲基)丙烯酰胺以外的可共聚单体的共聚物,所述(甲基)丙烯酰胺由以下结构式表示:
或
其中 Rl 表示氢原子或甲基,A 表示-(CH2)n-,n 为 4-6 或-(CH2)2 0-(CH2)-,Rz 表示甲基或乙基。这种吸附剂具有疏水性,加热时吸附性较高,冷却时吸附性下降。