The present invention relates to an acrylic rubber containing acrylate monomer units, methacrylate monomer units, and crosslinkable monomer units, wherein a glass transition temperature is -20°C or less, a change ratio in volume after a crosslinked rubber of the acrylic rubber is immersed in IRM903 oil at 150±2°C for 72 hours is 0 to 100%, and a change ratio in weight after a crosslinked rubber of the acrylic rubber is immersed in hot water at 150±2°C for 96 hours and dried is -5.0 to 0%.
本发明涉及一种含有
丙烯酸酯单体单元、
甲基丙烯酸酯单体单元和可交联单体单元的
丙烯酸酯橡胶,其中
玻璃化转变温度为-20℃或更低,
丙烯酸酯橡胶的交联橡胶在150±2℃的IRM903油中浸泡72小时后的体积变化率为0至100%,
丙烯酸酯橡胶的交联橡胶在150±2℃的热
水中浸泡96小时并干燥后的重量变化率为-5.0至0%。