ROP of Cyclic Carbonates and ROP of Macrocycles

Rokicki, Gabriel; Parzuchowski, Paweł G.

doi:10.1016/b978-0-444-53349-4.00107-2

Cited by 24 publications

(19 citation statements)

References 363 publications

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“…4 Five-membered cyclic carbonates can be prepared from multifunctional oxiranes via CO 2 insertion under mild conditions, [5][6][7] transesterication of 1,2-diols with dialkyl carbonates or the reaction of 1,2-halohydrins with bicarbonates. [8][9][10][11][12][13][14][15] Six-membered cyclic carbonates are obtained by the reaction of oxetanes with CO 2 . 16,17 Bi-or trifunctional monomers based on carbonates may be used to create multifunctional materials for advanced purposes, for example, in medical science for drug delivery.…”

Section: Introductionmentioning

confidence: 99%

Novel high reactive bifunctional five- and six-membered bicyclic dicarbonate – synthesis and characterisation

Tryznowski

Świderska

2018

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Novel high reactive bifunctional five- and six-membered bicyclic dicarbonate – synthesis and characterisation

Tryznowski

Świderska

2018

RSC Adv.

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“…Equation 1: Formula used to calculate the gel fraction. The swelling ratio was calculated according to Equation (2), where m t is the mass of the swollen samples in DCM.…”

Section: Tuneable Network Propertiesmentioning

confidence: 99%

“…Aliphatic polycarbonates (APC) raise considerable interest in the last decades for their specific characteristics i.e., biocompatibility and biodegradability [1]. Different routes can achive their synthesis, but these polymers are mainly synthesized by ring-opening polymerization (ROP) of cyclic carbonate monomers allowing for a good control over the polymer's microstructure [2]. The advantage of designing functional polycarbonates when compared to traditional polytrimethylenecarbonate (PTMC) lies in the modulation of their physico-chemical properties for specific needs, thus broadening and improving their performance characteristics.…”

Section: Introductionmentioning

confidence: 99%

Bio-Based Thermo-Reversible Aliphatic Polycarbonate Network

2019

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Aliphatic polycarbonates represent an important class of materials with notable applications in the biomedical field. In this work, low Tg furan-functionalized bio-based aliphatic polycarbonates were cross-linked thanks to the Diels–Alder (DA) reaction with a bis-maleimide as the cross-linking agent. The thermo-reversible DA reaction allowed for the preparation of reversible cross-linked polycarbonate materials with tuneable properties as a function of the pendent furan content that was grafted on the polycarbonate backbone. The possibility to decrosslink the network around 70 °C could be an advantage for biomedical applications, despite the rather poor thermal stability of the furan-functionalized cross-linked polycarbonates.

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“…The most represented catalytic systems used for oxirane carbonation are based on simple transition-metal complexes or, more recently, on complex bimetallic ones [12,15]. These catalysts are required in large amounts and need harsh reaction conditions.…”

Section: Introductionmentioning

confidence: 99%

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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ROP of Cyclic Carbonates and ROP of Macrocycles

Cited by 24 publications

References 363 publications

Novel high reactive bifunctional five- and six-membered bicyclic dicarbonate – synthesis and characterisation

Novel high reactive bifunctional five- and six-membered bicyclic dicarbonate – synthesis and characterisation

Bio-Based Thermo-Reversible Aliphatic Polycarbonate Network

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

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