| abstract |
A thermoplastic elastomer having a good balance of heat resistance, hydrolysis resistance, and mechanical properties in a wide range of hardness. The number average molecular weight in terms of polystyrene, which is composed of 10 to 90% by weight of an aromatic oligoamide ester unit having a specific structure and 90 to 10% by weight of a poly (vinyl ether) unit, is measured by gel permeation chromatography (GPC). Is 10,000 to 500,000, to synthesize an aromatic ester amide block copolymer. [Selection diagram] No selection diagram |