The dedimerization temperatures(T_d)of the dimers of several kinds of cyclopentadiene derivatives DCPD(CCOH)_2,DSHDM,DCPD (COOH)_2,DCPD(COOK)_2 were determined by DTA method.

• 用热分析法测定了双环戊二烯基乙醇、双1-螺环[2,4]-4,6-庚二烯基甲醇、双环戊二烯二甲酸及其钾盐二聚体的解二聚温度。