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Publication Citation: An automated spin-assisted approach for molecular layer-by-layer assembly of crosslinked polymer thin films

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Author(s): Edwin P. Chan; Jung-Hyun Lee; Jun-Young Chung; Christopher M. Stafford;
Title: An automated spin-assisted approach for molecular layer-by-layer assembly of crosslinked polymer thin films
Published: November 28, 2012
Abstract: 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 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 creates films with constant film growth rates 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 of the mLbL assembly.
Citation: Review of Scientific Instruments
Volume: 83
Issue: 11
Pages: pp. 1 - 6
Keywords: molecular layer-by-layer, membranes, polymer thin films
Research Areas: Characterization, Advanced Materials, Polymers