间位聚芳硫醚砜酰胺薄膜性能的研究

Research of Performances of m-PASSA Film

以间位聚芳硫醚砜酰胺（m—PASSA）树脂为膜材料，NMP为溶剂，采用溶液流延方法制备了m—PASSA致密膜，并对其进行了热性能、力学性能、溶解性及红外方面的测试。结果表明：对于不同成膜条件，膜的玻璃化温度Tg均存250℃以上，且随处理温度的升高有所下降；红外及溶解性分析表明成膜前后树脂的分子链结构发生了改变，形成了交联结构；于120～140℃条件下制备的薄膜拉伸强度较好，可达114MPa。

With m-polyarylene sulfide sulfone amide（m-PASSA） resin as the membrane material, NMP as solvent, m-PASSA films were prepared by solution casting method. The thermal behaviors, mechanical properties, solubility and Fourier transform infrared spectrometer （FTIR） of the m-PASSA films were investigated. The results showed that all of the glass transition temperature （Tg） of the m-PASSA films were above 250 ℃ and the Tg of the films declined as the treated temperature increased. Fourier transform infrared spec- trometer （FrlR） and solubility analysis showed that chain structure changed into crosslinking structure after film forming, the tensile strength could reach 114 MPa when the heating treatment temperature was 120 -140 ℃.