Articles with "anionic polymerization" as a keyword



Precise construction of polymer brush on a nanosilica surface via the combination of anionic polymerization and Ugi-4CR

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Published in 2020 at "Polymer"

DOI: 10.1016/j.polymer.2020.122533

Abstract: Abstract In this paper, a novel process was presented to synthesize monomodal and bimodal polymer brushes by optimizing living anionic polymerization (LAP) and Ugi four-component reaction (Ugi-4CR). As a remarkable tool, LAP provides an efficient… read more here.

Keywords: surface; polymer brushes; polymer; anionic polymerization ... See more keywords

Living Initiator-Transfer Anionic Polymerization of Isocyanates by Sodium Diphenylamide

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Published in 2019 at "Macromolecules"

DOI: 10.1021/acs.macromol.9b01523

Abstract: Access to protein-inspired polyisocyanates with high molecular weights (MWs) from anionic polymerization of isocyanates is challenging as it requires exceptional livingness. For this purpose, a dimerically self-associated sodium diphenylamide (NaDPA) was introduced as a robust… read more here.

Keywords: polymerization; polymerization isocyanates; initiator transfer; anionic polymerization ... See more keywords
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Anionic Polymerization of Azidoalkyl Glycidyl Ethers and Post-Polymerization Modification

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Published in 2019 at "Macromolecules"

DOI: 10.1021/acs.macromol.9b02236

Abstract: Polyethers like poly(ethylene glycol) have been widely used for a variety of valuable applications, although their functionalization still poses challenges due to the absence of functional handles ... read more here.

Keywords: ethers post; polymerization; glycidyl ethers; polymerization azidoalkyl ... See more keywords

N-Heterocyclic Carbene Initiated Anionic Polymerization of (E,E)-Methyl Sorbate and Subsequent Ring-Closing to Cyclic Poly(alkyl sorbate).

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Published in 2017 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.7b06897

Abstract: A diene-based cyclic polymer has been synthesized by the anionic polymerization of methyl sorbate (MS) by an N-heterocyclic carbene (NHC) in the presence of a bulky aluminum Lewis acid. We first polymerized methyl sorbate (MS)… read more here.

Keywords: methyl sorbate; polymerization; anionic polymerization; poly ... See more keywords

Direct observation of cyclic poly(N-substituted maleimide)s with broad size distributions synthesized by anionic polymerization using an N-heterocyclic carbene and successive ring closure without high dilutions

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Published in 2020 at "Polymer Journal"

DOI: 10.1038/s41428-020-0384-z

Abstract: The N-heterocyclic carbene 1,3-di-tert-butylimidazol-2-ylidene (NHCtBu) and its 1:1 adduct with methyl sorbate (MS) were found to initiate anionic polymerization of N-substituted maleimides (RMIs) in organic solvents at −20 °C to afford linear and cyclic poly(RMI)s, respectively.… read more here.

Keywords: cyclic poly; anionic polymerization; poly; ring closure ... See more keywords

Anionic polymerization of activated oxetane and its copolymerization with ethylene oxide for the synthesis of amphiphilic block copolymers

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Published in 2018 at "Polymer Chemistry"

DOI: 10.1039/c8py00307f

Abstract: The synthesis of polyoxetane (POx) and amphiphilic block copolymers composed of poly(ethylene oxide) (PEO) and polyoxetane was achieved by anionic ring-opening polymerization and monomer activation. First the anionic polymerization of oxetane was conducted using an… read more here.

Keywords: anionic polymerization; amphiphilic block; ethylene oxide; block copolymers ... See more keywords

Quasilinear polyglycidols by triethyborane-controlled anionic polymerization of unprotected glycidol.

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Published in 2023 at "Chemical communications"

DOI: 10.1039/d3cc00153a

Abstract: In this study, quasilinear polyglycidols (PG)s with ultralow degree of branching (DB) could be synthesized through anionic polymerization of glycidol carried out in the presence of triethylborane (TEB). PGs with DB ≤ 0.10, and molar… read more here.

Keywords: anionic polymerization; controlled anionic; quasilinear polyglycidols; triethyborane controlled ... See more keywords

Precise synthesis of high Tg adamantane-containing polystyrene derivatives via anionic polymerization

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Published in 2023 at "Polymer Chemistry"

DOI: 10.1039/d3py00238a

Abstract: The precise synthesis of poly(4-(4-(N-adamantylimino)methyl)phenylstyrene) was attempted via anionic polymerization of 4-(4-(N-adamantylimino)methyl)phenylstyrene to examine the substituent effect of polystyrene derivatives on their glass transition temperature (Tg) and the reactivity of... read more here.

Keywords: polystyrene derivatives; precise synthesis; via anionic; anionic polymerization ... See more keywords

Influence of polar modifiers on microstructure of polybutadiene obtained by anionic polymerization. Part 5: Comparison of µ, σ, σ+µ, and σ−µ complexes

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Published in 2017 at "International Journal of Polymer Analysis and Characterization"

DOI: 10.1080/1023666x.2016.1230264

Abstract: ABSTRACT A comparison was performed of the influence of polar modifiers forming (separately or simultaneously) σ and μ complexes with a living center during anionic polymerization of 1,3-butadiene — regarding the content and distribution of… read more here.

Keywords: anionic polymerization; comparison; polar modifiers; influence polar ... See more keywords

Anionic Polymerization of Para-Diethynylbenzene: Synthesis of a Strictly Linear Polymer

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Published in 2022 at "Polymers"

DOI: 10.3390/polym14050900

Abstract: Anionic homo- and copolymerization of p-diethynylbenzene in the presence of n-BuLi in polar solvents was carried out. The use of hexamethylphosphortriamide (HMPA) makes it possible to synthesize a completely linear soluble polymer that does not… read more here.

Keywords: anionic polymerization; polymer; diethynylbenzene; polymerization para ... See more keywords