Polyurethane(PU) elastomers based on low unsaturated polypropylene glycol(TDB), diisocyanate(MDI or TDI)and chain extender(1,4-BDO or MOCA) were prepared. The mechanical properties of PU elastomers were studied.

• 研究了以不同相对分子质量的低不饱和度聚醚多元醇、二异氰酸酯(MDI,TDI)和扩链剂(1,4 BDO,MOCA)为原料制备PU弹性体的力学性能。