聚芳硫醚酰胺类树脂的合成及表征

采用先合成含硫醚键的单体, 后进行低温溶液缩聚的方法, 合成高分子量的新型聚芳硫醚酰胺类树脂-聚芳硫醚砜酰胺（PASSA）和聚芳硫醚酮酰胺（PASKA）, 其特性粘数分别为0.72 dL/g（NMP为溶剂）和0.62 dL/g（浓硫酸为溶剂）, 并对单体及聚合物进行结构与性能表征. 通过热分析得出聚合物PASSA和PASKA的玻璃化温度分别为279.9 ℃和188.7 ℃, 热分解温度分别为461.5 ℃和467.08 ℃, 表明PASSA和PASKA具有优良的热性能; 溶解性实验表明, PASSA和PASKA是一种耐化学腐蚀性的树脂.

Synthesis and Characterization of Polyarylene Sulfide Sulfone/Ketone Amide

Diamine monomers containing sulfone or ketone group were synthesized firstly, then polyarylene sulfide sulfone amide (PASSA) and polyarylene sulfide ketone amide (PASKA) with high molecular weight were synthesized by a low temperature polycondensation reaction in anhydrous N-methylpyrrolidone (NMP). The structures of the monomers and the polymers were identified by IR spectra and UV spectra. The maximum intrinsic viscosities of the PASSA and PASKA are 0.72 dL/g in NMP and 0.62 dL/g in H₂SO₄ respectively. The polymers possess excellentthermal properties with the glass transition temperatures (T_g) of[KG*2]279.9 ℃ and 188.7 ℃ for PASSA and PASKA respectively, the initial degradation temperatures (T_i) of PASSA and PASKA are 461.5 ℃ and 467.08 ℃ respectively which suggests that PASSA and PASKA are novel heat resistantmaterials. And the deliquescent experiments show that PASSA and PASKA are also corrosion resistance materials.