Monolayer and multilayer compact film formations on different substrates by physical deposition
Monolayer and multilayer compact film formations on different substrates by physical deposition
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DOI：
10.1002/polb.21624
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发表时间：
2009-02
期刊：
影响因子：
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通讯作者：
Xiao-lin Wang;Yanzhen He;Li-Yan You;Zhong-yuan Lu;Zesheng Li
中科院分区：
文献类型：
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作者：
Xiao-lin Wang;Yanzhen He;Li-Yan You;Zhong-yuan Lu;Zesheng Li
采用耗散粒子动力学模拟方法研究了物理沉积法在不同固体基底上形成单层和多层薄膜的过程。详细研究了聚合物浓度、聚合物链长、溶剂质量以及聚合物溶液与固体基底表面的相互作用对成膜动力学的影响和成膜机理。结果进行了分析的厚度和形状的沉积膜，在聚合物溶液中的相分离的动力学，和聚合物聚集体和基板表面之间形成的接触角。此外，我们提出了两种策略，设计一个类似于“化学滴定”的沉积过程和物理阻止层间扩散的一个简单的交联网络障碍，存款致密的单层和多层膜的质量更好，分别。© 2009 Wiley Periodicals，Inc.聚合物科学杂志B部分：聚合物物理47：353-365，2009
Dissipative particle dynamics simulations are applied to investigate the monolayer and multilayer film formations on different solid substrates by physical deposition. The influences of the polymer concentration, the polymer chain length, the solvent quality, and the interactions between the polymer solution and the solid substrate surface on the film formation dynamics and the mechanism are studied in detail. The results are analyzed in terms of the thickness and the shape of the deposited film, the kinetics of phase separation in the polymer solution, and the contact angle formed between the polymer aggregations and the substrate surface. Moreover, we suggest two strategies, designing a deposition process analogous to “chemical titration” and physically blocking interlayer diffusion by a simple crosslinked network barrier, to deposit the compact monolayer and multilayer films with better quality, respectively. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 353–365, 2009