中文摘要：

透明聚氨酯材料具有较高的光学性能、耐热性能和力学性能可调控等优异性能，是近年来透明高分子材料的重要发展方向。详细介绍了透明聚氨酯的理论研究，综述了透明聚氨酯的应用和研究进展，在此基础上介绍了透明聚氨酯最新的发展方向，并展望了其发展前景。

英文摘要：

Transparent polyurethanes （PUs） are the most important development direction of transparent polymeric materials because of their high transmittance, heat-resistance and regulated mechanical properties. The theoreti- cal study and research orientations of transparent polyurethanes are introduced. The application and research progress for high-performance transparent polyurethanes are summarized. And finally, the future prospect and outlook of high- performance, functional transparent polyurethanes are also discussed.