Electric Literature of Br2CuIn 2020 ,《Surface-Initiated Passing-through Zwitterionic Polymer Brushes for Salt-Selective and Antifouling Materials》 was published in Macromolecules (Washington, DC, United States). The article was written by Vy, Ngoc Chau H.; Liyanage, Chinthani D.; Williams, Robert M. L.; Fang, Justin M.; Kerns, Peter M.; Schniepp, Hannes C.; Adamson, Douglas H.. The article contains the following contents:
The use of the traditional growing-from approach to prepare surface-initiated polymer brushes is widespread as it produces polymer brushes with higher grafting densities than grafting-to methods. In this article, we present an investigation of a passing-though approach that supplies the monomer from below the initiator-functionalized surface, inverting the concentration gradient found in the traditional growing-from technique that has been shown to increase the D of brushes. Using Fourier transform IR (FTIR) spectroscopy mapping combined with substrate masking, we show that the brushes incorporate only monomer diffusing from below and not from the surrounding solution Further, we characterize these brushes with contact angle anal., FTIR, and at. force microscopy and compare them to brushes synthesized by the traditional growing-from approach. Finally, we demonstrate that several properties of the zwitterionic polymer brush prepared by our passing-through method, for example, wettability, grafting d., uniformity, salt permeation retardation, and fouling resistance, are superior to those of brushes prepared by the growing-from technique. After reading the article, we found that the author used Cupric bromide(cas: 7789-45-9Electric Literature of Br2Cu)
Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Electric Literature of Br2Cu
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”