摘要
A series of sulfonated polyimides were synthesized by condensation of bis(p-hydroxylphenyl)-1,4,5,8-naphthalenetetracarboxylic di-imide(NTDA) with various molar ratios of 3,3′-disulfonate-4,4′-dichlorodiphenylsulfone to 4,4′-dichlorodiphenyl-sulfone. Both the monomers and the polymers were characterized by FTIR and {}+1H NMR. All the synthesized polymers have intrinsic viscosities above 0.70, which implies that the polymers have a high molecular weight. The DSC and TGA analysis of the polymers show that all of the polymers have good thermal stabilities. The polymers also have a good solubility, and could be cast into tough membranes. Some properties of the polymer membranes were also studied.
A series of sulfonated polyimides were synthesized by condensation of bis（p-hydroxylphenyl）-1,4, 5,8-naphthalenetetracarboxylic di-imide （ NTDA ） with various molar ratios of 3,3＇-disulfonate-4,4＇-dichlorodi- phenylsulfone to 4,4＇-dichlorodiphenyl-sulfone. Both the monomers and the polymers were characterized by FTIR and ^1 H NMR. All the synthesized polymers have intrinsic viscosities above 0.70, which implies that the polymers have a high molecular weight. The DSC and TGA analysis of the polymers show that all of the polymers have good thermal stabilities. The polymers also have a good solubility, and could be cast into tough membranes. Some properties of the polymer membranes were also studied.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第3期586-588,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20320120169)
吉林省重大科技发展项目(批准号:20020646)资助.
