Nagatani, Takeshi; Sasaki, Takaaki; Saito, Kyoichi published the artcile< Preparation of crosslinked cation-exchange membranes by sulfonation of polymer chains cografted with St and CMS>, Application In Synthesis of 1592-20-7, the main research area is chloromethyl styrene polymer chain cation exchange membrane sulfonation.
Cation-exchange membranes with improved electrodialysis and mech. strength for manufacturing edible salt were prepared by electron-beam-induced graft polymerization First, styrene (St) and chloromethyl styrene (CMS) were co-grafted onto an EB-irradiated ultra-high mol. weight polyethylene film. Second, through a reaction with chlorosulfonic acid, a sulfonic acid group was introduced while incorporating the crosslinked structure into the cograft chains. The cation-exchange membranes that were prepared with various CMS contents in a vinyl monomer solution were stored in 0.5 mol/L NaCl at 25°C to evaluate the time course of the water content, membrane resistance, and tensile strength. Over a 150-day storage period, the water content increased and the membrane resistance and tensile strength decreased. This tendency can be explained by the fact that the cograft chains are crosslinked to depress water inclusion in the sulfonic acid group containing a polymer network. The CMS content in the vinyl monomer solution governed the degree of crosslinking of the polymer network of the membrane, affecting the performance of the electrodialysis. The cation-exchange membrane, prepared at a CMS content of 17°C, and a degree of cografting of 74°C, exhibited 20°C higher chloride ion concentration of brine for the electrodialysis compared with a com. available cation-exchange membrane.
Salt and Seawater Science & Technology published new progress about Cation exchange membranes. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Application In Synthesis of 1592-20-7.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics