一种聚草酸酯的制备方法和产品
By esterification, pre-condensation and condensation reactions, and by adding functional agents under heating to deactivate the catalyst, the problem of poor stability of polyoxalate was solved, and a highly stable polyoxalate suitable for industrial production was prepared.
CN119264395BActive Publication Date: 2026-07-17WANHUA CHEM GRP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WANHUA CHEM GRP CO LTD
- Filing Date
- 2024-11-07
- Publication Date
- 2026-07-17
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Figure CN119264395B_ABST
Abstract
本发明提供一种聚草酸酯的制备方法和产品，该制备方法包括以下步骤：1)将草酸类化合物与二元醇在催化剂的作用下依次进行酯化反应、预缩聚反应、缩聚反应，得到第一化合物；2)向第一化合物中加入功能剂，对体系进行加热处理，得到聚草酸酯；其中，草酸类化合物包括草酸和 / 或草酸酯化物。本发明提供的聚草酸酯的制备方法，能够制备出稳定性高、不易分解的聚草酸酯，因此该聚草酸酯的分子量及特性粘度高、色相优、结晶快。
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