| 摘要 |
<p>Disclosed herein are an aromatic thioether ketone/thioether sulfone random copolymer comprising phenylene thioether ketone recurring units (I) and phenylene thioether sulfone recurring units (II), (a) the compositional ratio (I:II) of the recurring units (I) to the recurring units (II) ranging from 98:2 to 65:35, (b) the solution viscosity ( SIMILAR inh) being at least 0.3 dl/g, (c) the melt crystallization time (r) being at least 3 minutes, (d) the melting point (Tm) being 300-350 DEG C, (e) the glass transition temperature being at least 125 DEG C, (f) the retention (400 DEG C/20 min) of melt crystallization enthalpy ( SIMILAR Hmc) being at least 60 SIMILAR , and (g) the average particle size being at least 0.1 mm, and the production process thereof.</p> |
