Parzuchowski, Pawel G.; Swiderska, Aleksandra; Roguszewska, Marlena; Rolinska, Karolina; Wolosz, Dominik; Maminski, Mariusz published an article in 2020, the title of the article was Hyperbranched poly(ether-siloxane)s containing ammonium groups: Synthesis, characterization and catalytic activity.Name: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione And the article contains the following content:
In this article we report an easy synthetic route towards hyperbranched polyglycerols (Amm-HBPGs) containing trimethylammonium groups and siloxane or hydroxyl end-groups. Siloxane derivatives of Amm-HBPGs were synthesized in an efficient five-step procedure including an anionic ring opening copolymerization of the phthalimide-epoxy monomer with glycidol, followed by reactions with allyl bromide, hydrosilylation with hydrogenheptamethyltrisiloxane, hydrazinolysis of phthalimide groups and quaternization of resulting amine groups with Me iodide. Hydroxyl derivatives were obtained by quaternization of previously reported aminated HBPG’s with Me iodide. Polymeric products were characterized using various NMR techniques, FTIR, and elemental anal. Both Amm-HBPGs were shown to be effective in catalysis of addition of CO2 to oxirane. The hydrophilic catalysts showed higher efficiency but synthesis of ethylene carbonate was accompanied by formation of small amounts of ethylene glycol. The siloxane-containing catalyst was easily separable from reaction mixture showing high potential in the process of converting carbon dioxide into valuable chem. raw materials. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Name: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione
The Article related to trimethylammonium polyether siloxane hyperbranched polymer anionic ring opening copolymerization, carbon dioxide oxirane ethylene carbonate cycloaddition catalyst, carbon dioxide, catalysis, cycloaddition, ethylene carbonate, hyperbranched polymer, oxirane, polyglycidol, polysiloxane and other aspects.Name: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione
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Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics