Panchagnula Venkateswarlu, Jeon Junhwan, Dobrynin Andrey V
Polymer Program, Institute of Materials Science and Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA.
Phys Rev Lett. 2004 Jul 16;93(3):037801. doi: 10.1103/PhysRevLett.93.037801. Epub 2004 Jul 12.
Electrostatic assembly of multilayered thin films through sequential adsorption of polyions in layer-by-layer fashion utilizes the strong electrostatic attraction between oppositely charged molecules. We perform molecular dynamics simulations of multilayers of flexible polyelectrolytes around a charged spherical particle. Our simulations establish that the charge reversal after each deposition step is a crucial factor for the steady layer growth. The multilayers appear to be nonequilibrium structures.
通过以逐层方式依次吸附聚离子来进行多层薄膜的静电组装，利用了带相反电荷分子之间的强静电吸引力。我们对带电球形粒子周围的柔性聚电解质多层膜进行了分子动力学模拟。我们的模拟表明，每个沉积步骤后的电荷反转是稳定层生长的关键因素。多层膜似乎是非平衡结构。
