An automated spin-assisted approach for molecular layer-by-layer assembly of crosslinked polymer thin films
An automated spin-assisted approach for molecular layer-by-layer assembly of crosslinked polymer thin films
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DOI：
10.1063/1.4767289
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发表时间：
2012-11-01
影响因子：
1.6
通讯作者：
Stafford, Christopher M.
中科院分区：
文献类型：
--
作者：
Chan, Edwin P.;Lee, Jung-Hyun;Stafford, Christopher M.
我们提出了一种自动旋涂机的设计，它有助于基于分子层层（mLbL）组装的聚合物薄膜的制造。具体来说，我们展示了超薄交联全芳香族聚酰胺 (PA) 薄膜的合成，通过 X 射线光电子能谱测量，该薄膜的化学性质与海水淡化应用中使用的聚合物膜相同。 X 射线反射率测量表明，与传统的 PA 界面聚合相比，自动化 mLbL 组装所形成的薄膜具有恒定的薄膜生长速率和最小的粗糙度。这种自动旋涂机通过减少 mLbL 组装中的人工参与来提高可扩展性和样品间的一致性。 (C) 2012 年美国物理研究所。 [http://dx.doi.org/10.1063/1.4767289]
We present the design of an automated spin-coater that facilitates fabrication of polymer films based on molecular layer-by-layer (mLbL) assembly. Specifically, we demonstrate the synthesis of ultrathin crosslinked fully-aromatic polyamide (PA) films that are chemically identical to polymer membranes used in water desalination applications as measured by X-ray photoelectron spectroscopy. X-ray reflectivity measurements indicate that the automated mLbL assembly creates films with a constant film growth rate and minimal roughness compared with the traditional interfacial polymerization of PA. This automated spin-coater improves the scalability and sample-to-sample consistency by reducing human involvement in the mLbL assembly. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4767289]