Hyperbranched Poly(propylene oxide): A Multifunctional Backbone-Thermoresponsive Polyether Polyol Copolymer

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• 作者：Martina Sch枚mer ; Jan Seiwert ; Holger Frey
• 刊名：ACS Macro Letters
• 出版年：2012
• 出版时间：July 17, 2012
• 年：2012
• 卷：1
• 期：7
• 页码：888-891
• 全文大小：229K
• 年卷期：v.1,no.7(July 17, 2012)
• ISSN：2161-1653

文摘

Backbone-thermoresponsive hyperbranched poly(propylene oxide)-based polyether polyols have been synthesized by anionic ring-opening copolymerization of glycidol and propylene oxide. The number of functional hydroxyl end groups and the lower critical solution temperature (LCST) can be readily adjusted by varying the comonomer ratio. Molecular weights in the range of 1200鈥?000 g/mol were achieved. Hyperbranched polyether polyols with LCST values between 24 and 83 掳C can be obtained in a convenient one-step reaction.