| 摘要 |
FIELD: chemistry.SUBSTANCE: disclosed is an elastomeric polyester urethane siloxane material, the polymer chain of which is built from regularly alternating links of polyester urethane and polysiloxane of equal molecular weight ranging from 1000 to 6000 in weight ratio of 90:10 to 50:50, linked to each other by a curing agent - a low-molecular weight triol or aromatic diamine. As the polyester urethane polyesters which are trifuctional at the hydroxyl group, and the polysiloxane is polydimethyl siloxanes or polydivinyl siloxanes which are functional at the hydroxyl group are used.EFFECT: obtaining spatially crosslinked elastomeric materials with controlled chemical crosslinking density and therefore predictable properties.2 tbl, 22 ex, 1 dwg |
