...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Chemical Physics >Quenching of an excitation moving on a flexibele polymer
【24h】

Quenching of an excitation moving on a flexibele polymer

机译：在弹性纤维聚合物上移动的激发的猝灭

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We study theoretically the irreversible quenching of an excitation migrating on a polymer by small quencher molecules. Using a simplified superposition approximation, we solve the hierarchical reaction-diffusion equations and obtain the quenching rate and survival probability of the excitation. Depending upon the excitation mobility as well as upn the chain length, the quenching rate shows various behaviors, which is absent in the small molecular quenching reaction. In the diffusion-controlled limit, the quenching rate is found to increase as the excitation mobility increases and converge, for sufficiently large excitation mobility, to a constant value proportional to the radius of gyration of the polymer. This means that fast migration of single excitation, assisted by the dynamics of the polymer, enhance the reaction rate as much as that of the reaction of a static polymer where all the monomers are reactive.
机译：我们从理论上研究了由小的淬灭剂分子在聚合物上迁移的激发的不可逆淬灭。使用简化的叠加近似，我们求解了分层的反应扩散方程，并获得了激发的猝灭速率和存活概率。取决于激发迁移率以及链长，淬灭速率显示出各种行为，这在小分子淬灭反应中是不存在的。在扩散控制的极限中，发现淬灭速率随着激发迁移率的增加而增加，并且对于足够大的激发迁移率，收敛到与聚合物的回转半径成比例的恒定值。这意味着在聚合物的动力学帮助下，单次激发的快速迁移提高了反应速率，与所有单体均具有反应性的静态聚合物的反应速率一样。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号