界面聚合

Abstract(#br)Thin film composite (TFC) membranes for CO 2 /N 2 separation were prepared by interfacial polymerization from N-Methyldiethanolamine (MEDA) and Trimesoyl chloride (TMC) on crosslinked polydimethylsiloxane (PDMS) coating polysulfone (PS) support membrane. The structural properties of TFC membrane surfaces were characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffractometer (XRD). The relationships among the skin layer formation conditions, skin layer structure, and membrane separation performance were investigated.

Abstract(#br)We have developed novel thin film composite (TFC) membranes on ceramic substrates (referred as ceramic TFC membranes thereafter) for pervaporation dehydration of isopropanol (IPA) by using interfacial polymerization (IP) of m-phenylenediamine (MPD) and trymesoylchoride (TMC) to create ultra-thin polyamide films as selective layers. Prior to IP, a gutter layer of polydopamine (PDA) or polyethyleneimine (PEI) was deposited on α-alumina ceramic surfaces to improve the adhesion of polyamide thin films onto the ceramic.