Polyphosphric acid (PPA) modified asphalt binders were produced in the laboratory using one base asphalt and four levels......

以多聚磷酸(PPA)为催化剂和反应溶剂,丙烯酸为酰化剂,对二苯并-24-冠-8进行酰化,成功地合成了双茚满酮型二苯并-24-冠-8.产物由IR......