| abstract |
PURPOSE: To separate water at low energy cost by integrating a polymer, obtained by insolubilizing the homopolymer or copolymer of methacrylamide expressed by a specified general formula in water, with a fibrous substance. n CONSTITUTION: The homopolymer or copolymer of N-alkyl or N-alkylene- substituted methacrylamide shown by formula I (R 1 is H or methyl, R 2 is H, methyl and ethyl and R 3 shows methyl, ethyl and propyl) or formula II [R 1 is H and methyl, A shows -(CH 2 ) n - wherein (n) is 4W6 and -(CH 2 ) 2 -)-(CH 2 ) 2 -] or the copolymer with other copolymerizable monomers is insolubilized in water to obtain a polymer. The polymer is integrated with a fibrous substance by kneading, etc., to form a water separating and retaining agent. n COPYRIGHT: (C)1986,JPO&Japio |