| 摘要 |
<p>The present invention provides an improved catalyst useful for manufacturing homopolymers and copolymers of tetrahydrofuran, the method for its preparation, and its use as catalyst in a process for manufacturing homopolymers and copolymers of tetrahydrofuran. More particularly, the invention relates to a treated perfluorosulfonic acid resin having the most soluble components reduced by from about 2 to about 20 wt% and an increased average equivalent weight compared to said perfluorosulfonic acid resin prior to treatment, the method for preparing the treated perfluorosulphonic acid resin, and its use as catalyst in a process for manufacturing homopolymers and copolymers of tetrahydrofuran in the presence of said catalyst.</p> |
