抄録
The acrylonitrile-methyl acrylate copolymer (content of methyl-acrylate 3_??_5 mol%) was dissolved in those solvents which are shown below and these polymer-solvent systems did not gel at room temperature for remarkably long period.
β-Propiolactone γ-Butyrolactone Dimethylsulfoxide (DMSO) Tetramethylene sulfoxide Tetramethylene sulfone DMF DMA N-Formylmorphorine N-Acetylmorphorine N-Acetylpyrrolidine Glyconitrile
The viscosities and viscosity stabilities of the AN polymer concentrated solutions in Y-butyrollactone, DMSO, DMF and DMA, whose prices are relatively low, may be used for spinning solution.
