METHOD FOR PRODUCING POLYTETRAHYDROFURAN WITH LOW COLOUR INDEX

摘要

The invention relates to a method for producing polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers with low colour index by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer on a heterogeneous catalyst. The invention is characterized in that polymerization takes place in the presence of hydrogen.