Method for preparing polycaprolactone through ring-opening polymerization

The invention discloses a method for preparing polycaprolactone through ring-opening polymerization, and aims to provide a method for preparing polycaprolactone through ring-opening polymerization, which has the advantages of high catalytic activity, mild condition, simple process and the like, and the method comprises the following steps: by taking epsilon-caprolactone as a monomer and taking monobutyltin tris (2-ethylhexanoate) as a catalyst, reacting at the reaction temperature of 100-180 DEG C for 2-4 hours, thereby obtaining the polycaprolactone through ring-opening polymerization. Preparing polycaprolactone by adopting a bulk polymerization method; according to the method disclosed by the invention, the tin butyltris (2-ethylhexanoate) is used as a catalyst for polymerization preparation of epsilon-caprolactone; belongs to the technical field of polymer organic synthesis. 本发明公开了一种开环聚合制备聚己内酯的方法，旨在提供一种具有催化活性高、条件温和、工艺简单等优点的开环聚合制备聚己内酯的方法，该方法是以ε-己内酯为单体，单丁基三异辛酸锡为催化剂，在反应温度为100～180℃的条件下，采用本体聚合方法制得聚己内酯；本发明使用了单丁基