Synthesis and properties of novel random and block copolymers composed of phthalimidineand perfluoroisopropylidene-polyarylethersulfones 

 -  Polymer International, 50(2), p.249-255, 2001 .
<br/><br/> A series of novel polyarylethersulfone (AB)n block copolymers with different segment lengths have been synthesized by nucleophilic solution polycondensation of phenoxide-terminated and ¯uorine-terminated oligomers; random copolymers have been prepared over the whole composition ranges. The structures of the resultant copolymers have been con®rmed by FTIR, 13C NMR spectra and differential scanning calorimetry (DSC). Compared with two homopolymers and random copolymers, the block copolymers of this study possess excellent thermal stability (5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>HYDROGEN-BONDED POLYETHERSULFONE<br/>6F POLYETHERSULFONE<br/>RANDOM AND BLOCK COPOLYMER<br/>GLASS TRANSITION<br/>THERMAL STABILITY