实验实现的机械化学与加载键的强力加速裂变不同
Sergey Akbulatov1, Yancong Tian1, Zhen Huang2
1Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, UK.
Science (New York, N.Y.)
|July 22, 2017
概括
机械力可以改变化学键的稳定性. 这项研究表明,拉伸聚合物可以根据结合对齐和聚合物反应加速或抑制结合解离,从而验证机械化学理论.
科学领域:
- 聚合物化学
- 化学动力学
- 机械化学
背景情况:
- 机械力可以影响化学键解离.
- 理论模型预测力可以加速未加载的键或加强紧张的键.
研究的目的:
- 通过实验验证机械力如何影响化学键解离的理论.
- 研究聚合物链拉伸的机械化学动力学.
主要方法:
- 在压力下对聚合物进行了详细的运动测量.
- 特别关注三和有机素.
主要成果:
- 拉伸三聚加速了正交-氧键的解离.
- 伸展性有机抑制了对齐的-氧键的解离.
- 结果与机械化学动力学模型一致.
结论:
- 实验证据证实,机械力可以对键解离产生相反的影响.
- 结果取决于应用力,键向和聚合物链动态之间的相互作用.
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