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

作者：Chan Edwin P^*; Lee Jung Hyun; Chung Jun Young; Stafford Christopher M

来源：Review of Scientific Instruments, 2012, 83(11): 114102.

DOI：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.

• 出版日期2012-11