POSS-based polyurethane modified poly(propylene carbonate) and preparation method thereof

US10913823B2 · kind B2 · utility

Assignee

• Huazhong University of Science and Technology · CN

Inventors

• Xiaolin Xie · Xi'an, CN
• Yong Wang · Jinan, CN
• Xingping Zhou · Hubei, CN
• Yunsheng Ye · Hubei, CN
• Zhigang Xue · Hunan, CN
• Xiaojing Li · Beijing, CN

Key dates

• Filing date: Mar 28, 2018
• Grant date: Feb 9, 2021
• Expiry date: Jul 1, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A POSS-based non-isocyanate polyurethane modified poly(propylene carbonate) and a method of making are described. The POSS-based non-isocyanate polyurethane modified poly(propylene carbonate) includes a poly(propylene carbonate) and 1 to 20 wt % of a POSS-based non-isocyanate polyurethane. The method includes subjecting a POSS-based epoxy compound to a cycloaddition reaction with CO2 to obtain a POSS-based cyclic carbonate under an action of a catalyst, and subjecting the POSS-based cyclic carbonate to a ring-opening reaction with a monoamino compound to obtain the POSS-based non-isocyanate polyurethane. Polyurethane bonds and hydroxyl in the POSS-based non-isocyanate polyurethane serve as proton donors and forms a high-density of hydrogen bonds with carbonate units of the poly(propylene carbonate), enhancing the compatibility of the POSS-based non-isocyanate polyurethane with the poly(propylene carbonate).