| abstract |
(57) Abstract: To provide a highly concentrated aqueous emulsion of a polymer having an acrylonitrile content of 80 to 100% by weight. The composition comprises a monomer mixture containing at least 80% by weight of acrylonitrile in an aqueous emulsion, in the presence of a free radical initiator, and containing a polymer, represented by the general formula (I) and / or ( II) [Chemical 1] In the formula, M, R, R 1 and R 2 represent a predetermined group, n, x and y represent a given number, characterized by being polymerized in the presence of a polymeric emulsifier consisting of structural units corresponding to, having an acrylonitrile content of 80 to 100% by weight in the (co) polymer Acrylonitrile (co) A method for producing an aqueous polymer emulsion. |