自动加速现象

  • 网络autoacceleration;auto-acceleration effect
自动加速现象自动加速现象
  1. 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 .

  2. 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 .

  3. 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 .

  4. 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 .