College of Sciences, Northeastern University, Shenyang 110004, PR China.
Langmuir. 2011 Jan 18;27(2):672-7. doi: 10.1021/la104524k. Epub 2010 Dec 17.
A facile and efficient approach has been developed to speed up the fabrication of LBL films through sequential dipping in vigorously agitated solutions. By this agitated-dipping (AD) LBL technique, the multilayer films of PAH and PSS were fabricated. The resulting films were explored by UV-vis spectroscopy, X-ray reflectivity, and AFM. Meanwhile, the comparison of the AD and conventional LBL films was made, which demonstrated that AD LBL can decrease dipping time by more than 15 times without reducing film quality remarkably. In addition, to verify the generality of AD LBL, we studied the AD LBL films of PDDA/PSS and PAH/PAA preliminarily as well. AD LBL promotes the efficiency of conventional LBL greatly while preserving its most advantages, such as simplicity, cheapness, precise control, universality in substrates, recycling use of sample solutions, and so on. It would be a promising alternative to build up LBL films rapidly.
通过在剧烈搅拌的溶液中顺序浸渍，开发了一种快速制备层层（LBL）薄膜的简便方法。通过这种搅拌浸渍（AD）LBL 技术，制备了 PAH 和 PSS 的多层薄膜。使用紫外可见光谱、X 射线反射率和原子力显微镜对所得薄膜进行了研究。同时，对 AD 和传统 LBL 薄膜进行了比较，结果表明 AD LBL 可以在不显著降低薄膜质量的情况下，将浸渍时间缩短 15 倍以上。此外，为了验证 AD LBL 的通用性，我们还初步研究了 PDDA/PSS 和 PAH/PAA 的 AD LBL 薄膜。AD LBL 极大地提高了传统 LBL 的效率，同时保留了其大多数优点，如简单、廉价、精确控制、对衬底的通用性、样品溶液的可重复使用等。它将成为快速构建 LBL 薄膜的一种很有前途的替代方法。
