Structure-property relationship of silane-modified polyurethane: A review

Polyurethanes (PUs) belong to a class of engineering materials with a wide range of applications, primarily based on their unique structure-property relationship. The tailoring of PUs has been attracted scientific attention due to their specific electrical, biological, mechanical, and chemical properties. Improving the properties and performance of PUs-based materials can be achieved by altering the production process or the raw materials used in their manufacture or via advanced techniques. However, the production of sandwich structure and composite material in one-step processing is a decisive advantage for the specific application. With this motivation, we highlight the recent advances in PUs, the silane-terminated PUs, chemistry, various synthetic routes and shed light on special properties. In detail, we have discussed pertinent research studies on the synthesis mechanism of silane-terminated PUs and the influencing state parameters. Besides, we also disclosed the relationship between structure of silane modified polyurethanes and its properties. Furthermore, information on the crosslinking density, silane concentration and compatibility between organofunctional silane and PUs matrix. Finally, the challenges and urgent issues of further development in this area are discussed.