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一种环状聚酯低聚物的制备方法
Authors
史佳鑫
江盛鸿
+5 more
王宗宝
蒋志强
陈鹏
顾群
黎俊
Publication date
18 May 2011
Publisher
Abstract
本发明涉及一种环状聚酯低聚物的制备方法。现有方法由于存在卤素和副产物铵盐难于回收利用等问题,难于用于生产。本发明首先将线形聚对苯二甲酸二元醇酯溶于高沸点有机溶剂中,加热搅拌,形成聚对苯二甲酸二元醇酯的透明溶液;然后将有机锡催化剂加入到聚对苯二甲酸二元醇酯的透明溶液中,经过裂解、成环,形成聚对苯二甲酸二元醇酯的溶液;将溶液冷却、过滤、干燥,得到聚对苯二甲酸二元醇酯,再将产物溶液通过柱层析方法去除残留的有机锡催化剂,干燥后得到不含有机锡催化剂的环状聚酯低聚物。本发明方法所得产物在常温保存期间和加工升温过程中不发生自聚副反应
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Institutional Repository of Ningbo Institute of Material Technology & Engineering, CAS
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Last time updated on 04/12/2021
Institutional Repository of Ningbo Institute of Material Technology & Engineering, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.nimte.ac.cn/:174433/105...
Last time updated on 22/01/2018