聚乙二醇二甲基丙烯酸酯货号:P132873Poly(ethylene glycol) dimethacrylate聚乙二醇二甲基丙烯酸酯 / 聚乙二醇二甲基丙烯酸酯 average Mn 750, contains 900-1100 ppm MEHQ as inhibitor