连接水溶性聚合物的原子和中等尺度模拟
Massimo G Noro1, Prem K C Paul, Patrick B Warren
1Unilever Research and Development Port Sunlight, Bebington, Wirral CH63 3JW, UK.
Journal of the American Chemical Society
|June 12, 2003
概括
这项研究使用潜在的平均力 (PMF) 方法将分子和美索斯科普聚合物模拟联系起来. 它校准介面尺度参数以匹配热力学数据,从而能够准确预测聚合物吸附行为.
科学领域:
- 聚合物科学 聚合物科学
- 计算化学计算化学
- 材料科学 材料科学 材料科学
背景情况:
- 桥梁分子和介面镜模拟对于理解溶液中的聚合物行为至关重要.
- 准确的热力学参数对于预测性中等尺度聚合物建模至关重要.
研究的目的:
- 建立一种可靠的方法,用于链接水溶性聚合物的分子和介光学模拟.
- 为了能够准确地预测聚合物吸附在表面上的情况,使用中等尺度模拟.
主要方法:
- 利用平均力 (PMF) 方法的潜力从原子学模拟中推导出热力学量.
- 调整了中等尺度模拟参数,以匹配计算的热力学数据,例如单体二次病毒系数.
- 应用了自相一致的场理论来计算体积和表面相互作用参数 (chi参数).
主要成果:
- 成功地将水溶性聚合物的分子和美索斯科普模拟水平联系起来.
- 证明了对单体吸附异温和病毒系数的准确计算.
- 乙烯氧化物 (EO) 和氧化物 (PO) 吸附在水溶液中的二氧化上的计算相互作用参数.
结论:
- 开发的方法提供了一种可靠的方法,用于使用原子数据参数化介质级聚合物模拟.
- 这种技术增强了中等尺度模拟在水性环境中的聚合物表面相互作用的预测能力.
- 这些发现适用于设计聚合物涂层和理解接口现象.
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