| 摘要 |
IN A PROCESS FOR THE SINGLE-STAGE PREPARATION OF POLYTETRAHYDROFURAN AND/OR TETRAHYDROFURAN COPOLYMERS HAVING A MEAN MOLECULAR WEIGHT OF FROM 650 TO 5000 DALTON BY POLYMERIZATION OF TETRAHYDROFURAN OVER AN ACID CATALYST IN THE PRESENCE OF AT LEAST ONE TELOGEN AND/OR COMONOMER, THE TELOGEN AND/OR COMONOMER IS ADDED AT LEAST TWO ADDITION POINTS IN DIFFERENT SEGMENTS OF THE POLYMERIZATION APPARATUS.
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