DMSO溶液玻璃化过程氢键生命期特性

王伯春; 刘宝林

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DMSO溶液玻璃化过程氢键生命期特性

更新时间：2025-12-10

- DMSO溶液玻璃化过程氢键生命期特性
- CIESC Journal Issue 6, Pages: 1492-1501(2011)
- 作者机构：
  
  上海理工大学生物系统热科学实验室
- 作者简介：
- 基金信息：
- DOI：
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- Online First：05 June 2011，
  
  Published：05 June 2011
- 稿件说明：
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王伯春, 刘宝林. DMSO溶液玻璃化过程氢键生命期特性[J]. CIESC Journal, 2011, (6): 1492-1501.
DOI：

王伯春, 刘宝林. DMSO溶液玻璃化过程氢键生命期特性[J]. CIESC Journal, 2011, (6): 1492-1501. DOI：

摘要

Abstract

For the purpose of understanding the life characteristics of hydrogen bonds of DMSO aqueous solution during vitrification

molecular simulations were carried to calculate hydrogen bonds for 70% DMSO aqueous solution cooled with two cooling rates

1×107 K·s-1 and 1×1012 K·s-1.The life distribution of hydrogen bond was calculated.As temperature decreases

following results are obtained.(Ⅰ)The life distributions of the system

DMSOH2O and H2OH2O hydrogen bonds all oscillate in higher magnitude.(Ⅱ)The life distribution of DMSOH2O hydrogen bonds is greater than that of H2OH2O when time >3 ps.(Ⅲ)The life distributes in a manner similar to power or exponential functions in which independent variable is multiplied by a negative factor.(Ⅳ)The average life of DMSOH2O hydrogen bonds is longer than that of H2OH2O.(Ⅴ)The vibration amplitudes of life distributions of the system

DMSOH2O and H2OH2O hydrogen bonds and their changes in the system cooled with higher cooling rate are lower than those with lower cooling rate

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