Thermo-responsive graft copolymer PSf-g-PNIPM: Reducing the structure parameter via morphology control of forward osmosis membrane substrates was written by Salehi, Hasan;Shakeri, Alireza;Lammertink, Rob G. H.. And the article was included in Journal of Membrane Science in 2022.Electric Literature of C9H3Cl3O3 This article mentions the following:
An amphiphilic graft copolymer, consisting of a polysulfone (PSf) main chain and poly(n-isopropylacrylamide) (PNIPM) grafts, was synthesized via a combination of atom transfer radical polymerization and click chem. The copolymer’s structure characteristics (PNIPM length and content) substantially impacts membrane morphol. and performance, and were optimized firstly. The resulting copolymer PSf-g-PNIPM with the best characteristics was used as an additive in the fabrication of PSf porous substrates by phase inversion. The effect of the graft copolymer on the physicochem. characteristics and performance of PSf substrate was thoroughly studied. The pure water permeability displays a temperature dependency for PSf substrates with 20% PSf-g-PNIPM, with the maximum above the LCST of the PNIPM side chains. Thin film composite membranes formed on these substrates via interfacial polymerization show a significantly improved water flux during forward osmosis operation. The morphol. and performance of the PSf-g-PNIPM modified substrate can be further tuned by the casting medium temperature Membranes formed below the LCST show higher porosity and water flux. In the experiment, the researchers used many compounds, for example, Trimesoylchloride (cas: 4422-95-1Electric Literature of C9H3Cl3O3).
Trimesoylchloride (cas: 4422-95-1) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Electric Literature of C9H3Cl3O3
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics