| 摘要 |
<p>AROMATIC SULFIDE/SULFONE POLYMER PRODUCTION High molecular weight aromatic sulfide/sulfone polymers are produced by contacting a dihalo aromatic sulfone, an alkali metal sulfide other than lithium sulfide, and an alkali metal carboxylate in a sulfone diluent. Use of the alkali metal carboxylate results in polymers of high molecular weight having utility as coatings, films, molded objects, fibers, filaments, and the like.</p> |
