Articles with "opening copolymerization" as a keyword



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Ring‐Opening Copolymerization of Styrene Oxide and Cyclic Anhydrides by using Highly Effective Zinc Amido–Oxazolinate Catalysts

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Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201601679

Abstract: Polyesters have been widely applied owing to their biodegradability and biocompatibility. Recently, catalytic ring‐opening copolymerization of cyclic anhydrides and epoxides has emerged as an effective approach for the synthesis of polyesters. Herein, we report a… read more here.

Keywords: ring opening; cyclic anhydrides; styrene oxide; opening copolymerization ... See more keywords
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Degradable cationic polyesters via ring-opening copolymerization of valerolactones as nanocarriers for the gene delivery.

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Published in 2021 at "Bioorganic chemistry"

DOI: 10.1016/j.bioorg.2021.105299

Abstract: The development of cationic polymers as non-viral gene vectors has been hurdled by their high toxicity, thus degradable and biocompatible polymers are urgently demanded. Herein, five polyesters (B3a-B3e) were synthesized based on the ring-opening copolymerization… read more here.

Keywords: dope; ring opening; cationic polyesters; opening copolymerization ... See more keywords
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Synergic Heterodinuclear Catalysts for the Ring-Opening Copolymerization (ROCOP) of Epoxides, Carbon Dioxide, and Anhydrides

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Published in 2022 at "Accounts of Chemical Research"

DOI: 10.1021/acs.accounts.2c00197

Abstract: Conspectus The development of sustainable plastic materials is an essential target of chemistry in the 21st century. Key objectives toward this goal include utilizing sustainable monomers and the development of polymers that can be chemically… read more here.

Keywords: opening copolymerization; development; heterodinuclear catalysts; rocop ... See more keywords
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Bimetallic Zinc Catalysts for Ring-Opening Copolymerization Processes.

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Published in 2020 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.0c00835

Abstract: Novel bimetallic zinc acetate complexes supported by heteroscorpionate ligands have been developed for the ring-opening copolymerization of cyclohexene oxide and CO2 and the terpolymerization of cyclohexene oxide, phthalic anhydride, and CO2. Heteroscorpionate ligands precursors L1-L3… read more here.

Keywords: ring opening; zinc; copolymerization; opening copolymerization ... See more keywords
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Catalytic Ring-Opening Copolymerization of Fatty Acid Epoxides: Access to Functional Biopolyesters

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Published in 2022 at "Macromolecules"

DOI: 10.1021/acs.macromol.2c00321

Abstract: Fatty acid epoxies serve as valuable starting materials for the development of bio-based polyesters. Here we present a new and efficient catalytic process that allows for the copolymerization of fatty acid-based epoxides and various cyclic… read more here.

Keywords: opening copolymerization; copolymerization fatty; catalytic ring; fatty acid ... See more keywords
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Degradable Polyampholytes from Radical Ring-Opening Copolymerization Enhance Cellular Cryopreservation

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Published in 2022 at "ACS Macro Letters"

DOI: 10.1021/acsmacrolett.2c00298

Abstract: Macromolecular cryoprotectants based on polyampholytes are showing promise as supplemental cryoprotectants alongside conventional DMSO-based freezing. Here we exploit radical ring-opening (ter)polymerization to access ester-containing cryoprotective polyampholytes, which were shown to be degradable. Using a challenging… read more here.

Keywords: opening copolymerization; polyampholytes radical; radical ring; degradable polyampholytes ... See more keywords
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Scope and limitations of ring-opening copolymerization of trimethylene carbonate with substituted γ-thiolactones

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Published in 2018 at "Polymer Chemistry"

DOI: 10.1039/c8py00127h

Abstract: Functional (co)polymers are increasingly developed by ring-opening polymerization of functional cyclic esters and cyclic carbonates for a wide range of applications. Following this trend and aiming to challenge the polymerization of substituted γ-thiolactones, we studied… read more here.

Keywords: trimethylene carbonate; ring opening; substituted thiolactones; opening copolymerization ... See more keywords
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Degradable polymer prodrugs with adjustable activity from drug-initiated radical ring-opening copolymerization† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c8sc02256a

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Published in 2018 at "Chemical Science"

DOI: 10.1039/c8sc02256a

Abstract: Degradable polymer prodrugs were synthesized by ‘drug-initiated’ nitroxide-mediated radical ring-opening copolymerization and led to either nanoparticles or soluble prodrugs with adjustable cytotoxicity on two different cancer cell lines. read more here.

Keywords: drug initiated; ring opening; opening copolymerization; radical ring ... See more keywords
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Synthesis of a mononuclear magnesium bis(alkoxide) complex and its reactivity in the ring-opening copolymerization of cyclic anhydrides with epoxides.

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Published in 2020 at "Dalton transactions"

DOI: 10.1039/c9dt04274a

Abstract: Synthesis of a new mononuclear magnesium complex with a bulky bis(alkoxide) ligand environment and its reactivity in ring-opening polymerization (ROP) and ring-opening copolymerization (ROCOP) are reported. Reaction of n-butyl-sec-butylmagnesium with two equivalents of HOR (HOR… read more here.

Keywords: ring opening; bis alkoxide; copolymerization; mononuclear magnesium ... See more keywords
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Ring-opening copolymerization of ε-caprolactone and δ-valerolactone by a titanium-based metal–organic framework

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Published in 2021 at "New Journal of Chemistry"

DOI: 10.1039/d1nj01946e

Abstract: Metal organic frameworks (MOFs) are not much investigated as catalysts in copolymer formation with cyclic esters. Herein, we report the ring-opening copolymerization of e-caprolactone (CL) with δ-valerolactone (VL) using a recoverable and reusable Ti-metal based… read more here.

Keywords: ring opening; metal; caprolactone valerolactone; metal organic ... See more keywords