塩化亜鉛水溶液を溶剤とするスラリー式溶解法によるアクリル繊維製造に関する研究

第4報　ポリマーの変質度と繊維性能について

抄録

With chemical change of CN group to amide and carboxyl group by heating the spinning solution, maximum stretching ratio of spun fibers increase, thereby tensile strength increases and elongation increases, too.
But, in case of the extreme chemical change of polymer, the fiber produced from it causes to the agglutinate in boiling water and loses the resistance for hot water.
With the chemical change to CONH₂ and COOH groups from CN group, the affinity for cationic or disperse dye and the shrinkage of fiber increase in boiling water or in air of high temperature. The elastic recovery of elongation and Young's modulus indicate the maximum value at the state of suitable chemical change of polymer.
The polymer having SO₃H group indicates the affinity for cationic dyes as at lower PH as at higher PH of dyeing solution, but on the other hand the polymer having COOH group can not indicate the affinity for cationic dyes at lower PH of dyeing solution.