Process for making polyarylethers and use in membrane preparation

A process for making polyarylethers provides a reaction mixture that includes a dipolar aprotic solvent for polyarylether and polyarylether forming reactants, and reacts the polyarylether- forming reactants, with removing of water with nitrogen in the absence of azeotrope forming cosolvent and optionally replacing removed amounts with dipolar aprotic solvent. The process can further include directly wet spinning the reactor solution without recovery of the polymer from the dipolar aprotic solvent through a spinneret to form hollow fibers or flat sheets suitable for membranes. 聚芳醚的制备方法，该方法提供包括用于聚芳醚的偶极非质子性溶剂和生成聚芳醚的反应物的反应混合物，使生成聚芳醚的反应物反应，在不存在共沸物生成共溶剂时氮气下除去水，和任选地用偶极非质子性溶剂代替除去的量。该方法可进步包括通过喷丝头直接湿式纺丝反应器溶液以形成适合于膜的中空纤维或平板，而不需要从偶极非质子性溶剂回收聚合物。