Hyperbranched polyglycerols containing amine groups — Synthesis, characterization and carbon dioxide capture

Parzuchowski, Paweł G.; Stefańska, Marta; Świderska, Aleksandra; Roguszewska, Marlena; Zybert, Magdalena

doi:10.1016/j.jcou.2018.07.010

Cited by 11 publications

(20 citation statements)

References 38 publications

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“…Synthesis of aminated polyglycerol A-HBPG was performed according to a previously described procedure [28] 2.2. Instrumentation FTIR (Fourier transform infrared) spectra were recorded on a Nicolet iS5 Mid Infrared FT-IR Spectrometer equipped with iD7 ATR optical base (Thermo Scientific®, Waltham, MA, USA).…”

Section: Methodsmentioning

confidence: 99%

“…Epoxy phthalimide monomer and its copolymers (1a-1b) with glycidol were synthesized according to previously reported procedure [28]. The amounts of reagents and reaction yields are given in Table 1.…”

Section: Rop Polymerization Of Epoxy Phthalimide and Glycidolmentioning

confidence: 99%

Section: Monomermentioning

confidence: 99%

“…The monomer N-(2,3-epoxypropyl)-phthalimide shown in Scheme 1 was obtained in the reaction of potassium phthalimide with an excess of epichlorohydrin and purified by crystallization from methanol [28,32]. Its spectral characterization are given in the supplementary materials ( Figure S1-S3) and in ref [28]. Figures 1 and 2 show its COSY (correlation spectroscopy) and HSQC-DEPT (heteronuclear single quantum correlation-distortionless enhancement by polarization transfer) NMR spectra that have not been published before and are crucial to the analyses of polymers containing these structures.…”

Section: Monomermentioning

confidence: 99%

“…Earlier studies showed that in reactions mixtures containing more than 25% of epoxy phthalimide, incomplete conversion of this monomer was observed and removing it from the product required a tedious multi-precipitation procedure. The detailed synthetic procedure and characterization of 1a-b copolymers is given in [28]. The 1 H-13 C HSQC-DEPT (500 MHz, DMSO-d 6 ) NMR spectrum of epoxy phthalimide monomer.…”

Section: Copolymerizationmentioning

confidence: 99%

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Hyperbranched Poly(ether-siloxane)s Containing Ammonium Groups: Synthesis, Characterization and Catalytic Activity

et al. 2020

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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, hydrosililation with hydrogenheptamethyltrisiloxane, hydrazinolysis of phthalimide groups and quaternization of resulting amine groups with methyl iodide. Hydroxyl derivatives were obtained by quaternization of previously reported aminated HBPG’s with methyl iodide. Polymeric products were characterized using various NMR techniques, FTIR, and elemental analysis. 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 chemical raw materials.

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Section: Methodsmentioning

confidence: 99%

Section: Rop Polymerization Of Epoxy Phthalimide and Glycidolmentioning

confidence: 99%