KATALYSATOR, VERFAHREN ZU DESSEN HERSTELLUNG UND VERFAHREN ZUR POLYMERISATION CYCLISCHER ETHER AN DIESEM KATALYSATOR
摘要:
The invention relates to a solid, acid catalyst for the production of polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of said polymers by the polymerisation of tetrahydrofuran in the presence of at least one telogen and/or comonomer. Said catalyst has a BET surface area of at least 160 m2/g and an acid site density of at least 0.05 mmol/g for pKs values of between 1 and 6. The invention also relates to a method for producing the catalyst and to a method for the polymerisation of cyclic ethers on said catalyst.
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