Preparation method of aromatic sulfone polymer, obtained aromatic sulfone polymer and application

Abstract

The invention discloses a preparation method of an aromatic sulfone polymer, which comprises the following steps: adjusting the ratio of a reaction monomer to a salt-forming agent, limiting the average particle size distribution of the salt-forming agent, and finally adjusting the process conditions to obtain the aromatic sulfone polymer. The proportion of the peak area SM500-2000 of a polymer chain with the weight-average molecular weight of 500-2000g/mol of the prepared aromatic sulfone polymer to the peak area SM of the total polymer chain is less than 1%, so that the aromatic sulfone polymer has better high-temperature aging resistance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a preparation method of an aromatic sulfone polymer and the obtained aromatic sulfone polymer. Background technique [0002] Aromatic sulfone polymers are high temperature transparent engineering thermoplastics with outstanding thermal properties, excellent chemical resistance, excellent high temperature creep resistance, excellent dimensional stability, extremely low smoke and toxic gas emissions, and superior of hot water, superheated steam and good electrical properties. With the development of aromatic sulfone polymer materials becoming more and more perfect, its application range is also wider and wider, and it has applicability in aerospace, medical and health, food, household appliances, electronic appliances, energy and chemical applications. [0003] Since polyarylethersulfone resins have a certain water content, during the injection molding process of product...

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