Zhang, Hao; Xie, Fei; Zhao, Zhang; Afsar, Noor Ul; Sheng, Fangmeng; Ge, Liang; Li, Xingya; Zhang, Xiwang; Xu, Tongwen published the artcile< Novel Poly(ester amide) Membranes with Tunable Crosslinked Structures for Nanofiltration>, Formula: C19H34O2, the main research area is polyester amide membrane tunable crosslinked nanofiltration; crosslinking density; desalination; dye/salt separation; interfacial polymerization; nanofiltration; poly(ester amide).
Tuning the crosslinking d. of interfacial-polymerized nanofiltration (NF) membranes varying from loose to dense structures can make them meet the demand of various applications. The properties (e.g., pore size and porosity) of NF membranes can be tuned by choosing monomers with different structures and reactivities. Herein, tris(hydroxymethyl)aminomethane (THAM), a low-cost and green monomer, is first employed for the preparation of poly(ester amide) (PEA) thin-film composite membranes via interfacial polymerization The moderate reactivity of THAM enables rational regulation of the crosslinking d. of PEA membranes from loose to dense structures by varying the THAM concentration, which can hardly be achieved for traditional polyamide or polyester membranes. The developed PEA membranes with a wide tunability range of crosslinking densities broaden their potential utility in NF. PEA membranes with dense structures show exceptional desalination performance with a water permeance of 11.1 L m-2 h-1 bar-1 and a Na2SO4 rejection of 97.1%. However, loose PEA membranes exhibit good dye/salt separation performance with a dye removal rate over 95.0% and negligible NaCl rejection (<7.5%), as well as high water permeance (>45 L m-2 h-1 bar-1). This work implies that PEA membranes with tunable crosslinked structures provide new possibilities for the development of task-specific separation membranes.
ACS Applied Materials & Interfaces published new progress about Antifouling agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics