| abstract |
Hinered phenols antioxidant structure is connected by the present invention with carbodiimides structure, a kind of molecular weight, the fusing point carbodiimides (I) high compared with single second carbide imine are synthesized by substitution, coupled reaction, overcome and be easy under single second carbide imine high temperature from the compounds such as polyester, polyurethanes to the shortcomings that external migration, improve the hydrolysis resistance of polyester material, there is oxidation resistance simultaneously, strengthen the ageing resistance of polyester material, prolong the service life. (Ⅰ)。 |