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离子性聚合物的合成方法主要集中于通过一些含芳环聚合物的大分子反应,引入不同的离子基。如聚苯乙烯、聚芳醚砜、聚芳醚酮的磺化反应及聚苯醚的羧化反应等。但伴随大分子反应,聚合物要发生严重的化学降解,并且引入离子基团数目也不易控制。 本工作将酚酞啉引入酚酞型聚芳醚砜,发现在弱碱K_2CO_3体系中酚酞啉仍能保持一定的反应活性,且不至于发生交联反应。通过与酚酞的共聚反应可方便地控制聚合物的羧化度。
The synthesis of ionic polymers mainly concentrates on the introduction of different ionic groups through some macromolecular reactions with aromatic ring polymers. Such as polystyrene, poly aryl ether sulfone, poly aryl ether ketone sulfonation and polyphenylene ether carboxylation reaction. However, with the macromolecular reaction, the polymer undergoes serious chemical degradation, and the number of introduced ionic groups is not easy to control. In this work, phenolphthalein was introduced into phenolphthalein polyarylethersulfone, and it was found that phenolphthalein remained a certain reactivity in the weak base K 2 CO 3 system without cross-linking reaction. The degree of carboxylation of the polymer can be conveniently controlled by copolymerization with phenolphthalein.