用溴丙烯-高氯酸银或癸二酰氯-高氯酸银引发四氢呋喃在0℃进行本体聚合,测得总生长反应速度常数(k_p)分别为0.32×10~(-3)及0.38×10~(-3)升·克分子~(-1)·秒~(-1)。这样低的k_p值认为是由于ClO_4~-抗衡负离子具有强的亲核性所致。在溴丙烯-高氯酸银催化体系配此中加大银盐用量(到过量51％),引发诱导时间缩短,聚合速度加快,而k_p值的增大不明显。 The bulk polymerization of tetrahydrofuran with bromopropene - perchlorate or sebacoyl chloride - perchlorate was carried out at 0 ℃. The total growth rate constants (k_p) were 0.32 × 10 ~ (-3) and 0.38 × 10 ~ (-3) liters · mole -1 (-1) seconds -1. Such a low k_p value is believed to be due to the strong nucleophilicity of the ClO 4 ~ - counter anion. In the bromopropene-perchloric acid catalyst system, the amount of silver salt was increased (to over 51%), the induction time was shortened, the polymerization rate was accelerated, but the increase of k_p value was not obvious.