Abstract

A new type of aromatic ionomers is obtained by the interaction of aromatic ionogenic polymer, sulfonated polyphenylquinoxaline, with hydroxides of alkali metals (Li, Na, and K). It is found that introduction of the metal strongly affects the aggregation of ionomer macromolecules which is associated with both the specific intermolecular interaction between ionic groups and the interaction between hydrophobic segments of the backbone. This, in turn, causes changes in the solubility and viscosity of ionomer solutions and strain–stress characteristics of their films in the dry and swollen states relative to those of the films based on initial and sulfonated polyphenylquinoxalines. It is shown that the replacement of hydrogen atoms in sulfo groups with alkali-metal ions in sulfonated polyphenylquinoxaline leads to an increase in the thermal and thermo-oxidative stability of the ionomers to the level close to that observed for polyphenylquinoxaline.

中文翻译：

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基于磺化聚苯基喹喔啉的离聚物：溶液和嵌段的合成及性质

摘要

通过芳族离子型聚合物磺化的聚苯基喹喔啉与碱金属（Li，Na和K）的氢氧化物的相互作用获得了新型芳族离聚物。发现金属的引入强烈地影响离聚物大分子的聚集，其与离子基团之间的特定分子间相互作用以及主链的疏水链段之间的相互作用有关。反过来，这会导致离聚物溶液的溶解度和粘度以及相对于基于初始和磺化聚苯基喹喔啉的薄膜而言，在干燥和溶胀状态下其薄膜的应变应力特性发生变化。