A polymer or copolymer of maleic acid is produced by neutralizing (I) maleic acid in an aqueous medium with (III) an alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:0 to 100:90, polymerizing (I) with a polymerization initiator, adding (III) a further amount of the alkali metal hydroxide or ammonia at a molar ratio of (I) to (III) in the range of 100:100 to 100:130 in total through the previous addition and this addition and continuing the polymerization to the complete effect.
通过在
水介质中使用碱
金属氢氧化物或
氨中和(I)
马来酸,使(I)与(III)的摩尔比在100:0到100:90的范围内,生产
马来酸聚合物或共聚物,通过聚合
引发剂聚合(I),然后在前一次添加和本次添加中,使用(III)进一步添加碱
金属氢氧化物或
氨,使(I)与(III)的摩尔比在100:100到100:130的范围内,继续聚合直至完全反应。