| 摘要 |
<p>A novel process for preparing polyarylene sulfides is disclosed, which process comprises: providing at least one cyclic arylene sulfide oligomer of the formula <CHEM> wherein S represents a sulfur atom, groups Ar, which may be the same or different, represent each an arylene radical having 6 - 24 carbon atoms, group R, which may be the same or different, represent each a C1-C12 alkyl radical, or a C1 -C12 alkoxy radical, or a primary or secondary amino group, n is an integer of from 2 to 50, and m is an integer of from 0 to 15, and heating said cyclic oligomer I in the presence of a ring opening polymerization catalyst so as to form polyarylene sulfide. The process produces polyarylene improved in chemical, physical and mechanical properties.</p> |
