Articles with "reactive extrusion" as a keyword



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Lipase-Catalyzed Reactive Extrusion: Copolymerization of ε-Caprolactone and ω-Pentadecalactone.

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Published in 2020 at "Macromolecular rapid communications"

DOI: 10.1002/marc.202000417

Abstract: This study assesses the use of immobilized lipase catalyst N435 during reactive extrusion (REX) versus magnetically stirred bulk and solution reaction conditions for the copolymerization of ε-caprolactone with ω-pentadecalactone (CL/PDL 1:1 molar). N435-catalyzed REX for reaction… read more here.

Keywords: copolymerization caprolactone; reactive extrusion; caprolactone pentadecalactone;
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Synthesis of starch graft-copolymers via reactive extrusion and their ammonium sorption properties

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Published in 2020 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2020.124291

Abstract: Abstract The limiting features of existing ammonium-recovery technologies, such as pH-dependency, inefficient manufacturing, and low removal capacity of ammonium sorbents, limit their commercial application potential. To overcome these technical limitations, we employed reactive extrusion (REx)… read more here.

Keywords: capacity; starch copolymers; ammonium; reactive extrusion ... See more keywords
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Hydrolytic degradation of branched PLA produced by reactive extrusion

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Published in 2018 at "Polymer Degradation and Stability"

DOI: 10.1016/j.polymdegradstab.2018.11.006

Abstract: Abstract Reactive extrusion using dicumyl peroxide (DCP) and a tri-functional coagent, triallyl trimesate (TAM) is implemented to introduce long-chain branching (LCB) in poly(lactic acid) (PLA). The effects of this modification on the long-term hydrolysis of… read more here.

Keywords: pla; hydrolytic degradation; mass; molar mass ... See more keywords
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Synthesis of potentially biobased poly(hexamethylene sebacate) via reactive extrusion

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Published in 2021 at "Polymer"

DOI: 10.1016/j.polymer.2021.123644

Abstract: Abstract The synthesis of a biobased aliphatic polyester, poly(hexamethylene sebacate) (PE 6-10) via esterification and alcoholysis reactions steps by reactive extrusion is reported. The overall reaction time was decreased down to around 14 minutes instead… read more here.

Keywords: extrusion; hexamethylene sebacate; synthesis; reactive extrusion ... See more keywords
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Magnetic (Zn-St)10Fe0n (n=1,2,3,4) framework of macro-mesoporous biomaterial prepared via green enzymatic reactive extrusion for dye pollutants removal.

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Published in 2019 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.9b14750

Abstract: Bio-based materials have the potential to be developed into green multifunctional products to replace their chemosynthetic counterparts, which have environmental and economic concerns. However, designing magnetic and porous biomaterials without pore spaces being occupied by… read more here.

Keywords: framework; enzymatic reactive; dye; magnetic 10fe0n ... See more keywords
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Microwave energy assisted synthesis of poly lactic acid via continuous reactive extrusion : modelling of reaction kinetics

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Published in 2017 at "RSC Advances"

DOI: 10.1039/c6ra26514f

Abstract: The most commonly used batch process to manufacture PLA is ring opening polymerization (ROP) of lactide monomer in a suitable solvent, in the presence of a metallic/bimetallic catalyst (Sn, Zn, and Al) or other organic… read more here.

Keywords: energy; reaction kinetics; continuous reactive; extrusion ... See more keywords
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Lipase-catalyzed ring-opening copolymerization of ω-pentadecalactone and δ-valerolactone by reactive extrusion

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Published in 2020 at "Green Chemistry"

DOI: 10.1039/c9gc04111g

Abstract: This work demonstrates the synthesis of poly(ω-pentadecalactone-co-δ-valeroLactone) with high molecular weight (Mn = 71.3 kDa) and low polydispersity (Đ = 1.67) within 6 hours by reactive extrusion (REX) using a lipase catalyst (Novozyme-435). The catalyst… read more here.

Keywords: lipase catalyzed; pentadecalactone valerolactone; reactive extrusion;
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Continuous flow mechanochemistry: reactive extrusion as an enabling technology in organic synthesis.

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Published in 2022 at "Chemical Society reviews"

DOI: 10.1039/d1cs00657f

Abstract: Rapid and wide-ranging developments have established mechanochemistry as a powerful avenue in sustainable organic synthesis. This is primarily due to unique opportunities which have been offered in solvent-free - or highly solvent-minimised - reaction systems.… read more here.

Keywords: reactive extrusion; organic synthesis; mechanochemistry; technology ... See more keywords
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Mechanochemical Applications of Reactive Extrusion from Organic Synthesis to Catalytic and Active Materials

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Published in 2022 at "Molecules"

DOI: 10.3390/molecules27020449

Abstract: In the past, the use of mechanochemical methods in organic synthesis was reported as somewhat of a curiosity. However, perceptions have changed over the last two decades, and this technology is now being appreciated as… read more here.

Keywords: applications reactive; extrusion; organic synthesis; mechanochemical applications ... See more keywords
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Grafting of Maleic Anhydride onto Poly(vinylidene fluoride) Using Reactive Extrusion

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Published in 2023 at "Molecules"

DOI: 10.3390/molecules28052246

Abstract: Poly(vinylidene fluoride) was grafted with maleic anhydride through reactive extrusion by using diisopropyl benzene peroxide as an initiator and 9-vinyl anthracene as a stabilizer. Effects of various parameters on grafting degree were investigated including the… read more here.

Keywords: maleic anhydride; poly vinylidene; reactive extrusion; vinylidene fluoride ... See more keywords
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Influence of Different Types of Peroxides on the Long-Chain Branching of PP via Reactive Extrusion

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Published in 2020 at "Polymers"

DOI: 10.3390/polym12040886

Abstract: Long-chain branching (LCB) is known as a suitable method to increase the melt strength behavior of linear polypropylene (PP), which is a fundamental weakness of this material. This enables the modification of various properties of… read more here.

Keywords: rheology; long chain; chain branching; via reactive ... See more keywords