| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to high-molecular weight compounds, particularly to aromatic copolyesters, ^ , ^ where n=1, 5, 10, 20. or m=1-100. Said compounds are obtained through a reaction between oligosulphones based on diane or phenolphthalein with polycondensation degree equal to 1, 5, 10, 20 and diacyl chlorides of terephthaloyl-di(p-oxybenzoates) through acceptor-catalytic polycondensation in chlorinated organic solvents. ^ EFFECT: copolyesters have high value of intrinsic viscosity, thermal stability and heat resistance and can be used as heat resistant construction materials. ^ 2 cl, 2 tbl, 8 ex |
