自动加速现象

初期动力学数据表明，聚合速率RP∝[M]~（1.304）。高转化率下聚合结果表明，在一定条件下产生自动加速现象。

The results of initial kinetics indicated the rate of polymerization rP ∝( M ) 1.304 . The results at high conversions indicated that there is self-acceleration of polymerization .

VC非均相聚合的诱导期不明显，自动加速现象一般发生在聚合前、中期，后期聚合速率较小。

The polymerization induction period was not obvious and the self-acceleration phenomenon was occurred in the early and mid stages of the polymerization process .

但在70℃下，自由基三元共聚的总转化率较低，没有明显的自动加速现象。

Meanwhile , it showed that the polymerization rates were relative lower at polymerization temperature of 70 ℃ and it had no obvious auto-acceleration .

在反应初期，自动加速现象明显.由于凝胶效应的影响，分子量随着单体转化率的提高而逐渐增大。

In the early period of the dispersion polymerization , auto-accelerate phenomenon was observed , and molecular weight gradually increased with the increase of the conversion because of the gel effect .