Articles with "chain growth" as a keyword



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Theory of chain growth in chemical oxidative polymerization of aniline derivatives

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Published in 2020 at "Synthetic Metals"

DOI: 10.1016/j.synthmet.2020.116445

Abstract: Abstract A theoretical approach has been proposed for the establishment of quantitative relationship between the number-average molecular weight of products of the oxidative polymerization of aromatic amines and both reagent concentrations and temperature. The derived… read more here.

Keywords: chain growth; polymerization; oxidative polymerization; theory ... See more keywords
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Recent Developments in Chain-Growth Polymerizations of Conjugated Polymers

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Published in 2017 at "Industrial & Engineering Chemistry Research"

DOI: 10.1021/acs.iecr.7b01030

Abstract: In this Review, we discuss recent developments and advancements in chain-growth polymerizations for conjugated polymers. Controlled synthesis methods will produce conjugated polymers with finely tuned properties and facilitate their development in new industrial applications. We… read more here.

Keywords: chain growth; recent developments; conjugated polymers; growth ... See more keywords
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CO as a Promoting Spectator Species of CxHy Conversions Relevant for Fischer–Tropsch Chain Growth on Cobalt: Evidence from Temperature-Programmed Reaction and Reflection Absorption Infrared Spectroscopy

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Published in 2018 at "ACS Catalysis"

DOI: 10.1021/acscatal.8b02743

Abstract: Cobalt-catalyzed low temperature Fischer–Tropsch synthesis is a prime example of an industrially relevant reaction in which CxHy intermediates involved in chain growth react in the presence of a large quantity of COad. In this study,… read more here.

Keywords: chain growth; temperature; temperature programmed; fischer tropsch ... See more keywords
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Nickel-Catalyzed Copolymerization of Ethylene and Vinyltrialkoxysilanes: Catalytic Production of Cross-Linkable Polyethylene and Elucidation of the Chain-Growth Mechanism.

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

DOI: 10.1021/jacs.7b10281

Abstract: Copolymerizations of ethylene with vinyltrialkoxysilanes using cationic (α-diimine)Ni(Me)(CH3CN)+ complexes 4a,b/B(C6F5)3 yield high molecular weight copolymers exhibiting highly branched to nearly linear backbones depending on reaction conditions and catalyst choice. Polymerizations are first-order in ethylene pressure… read more here.

Keywords: chain growth; chain; ethylene; cross linkable ... See more keywords
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Carbon Chain Growth by Sequential Reactions of CO and CO2 with [W(CO)6] and an Aluminum(I) Reductant.

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Published in 2018 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.8b09761

Abstract: The formation of carbon chains by the coupling of CO x ( x = 1 or 2) units on transition metals is a fundamental step relevant to Fischer-Tropsch catalysis. Fischer-Tropsch catalysis produces energy dense liquid… read more here.

Keywords: chain growth; chain; carbon; reactions co2 ... See more keywords
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Programming Protein Polymerization with DNA.

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Published in 2018 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.8b10011

Abstract: A strategy that utilizes DNA for controlling the association pathway of proteins is described. This strategy uses sequence-specific DNA interactions to program energy barriers for polymerization, allowing for either step-growth or chain-growth pathways to be… read more here.

Keywords: chain growth; dna; step growth; dna monomers ... See more keywords
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Programming chain-growth copolymerization of DNA hairpin tiles for in-vitro hierarchical supramolecular organization

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Published in 2019 at "Nature Communications"

DOI: 10.1038/s41467-019-09004-4

Abstract: Formation of biological filaments via intracellular supramolecular polymerization of proteins or protein/nucleic acid complexes is under programmable and spatiotemporal control to maintain cellular and genomic integrity. Here we devise a bioinspired, catassembly-like isothermal chain-growth approach… read more here.

Keywords: chain growth; chain; hairpin tiles; dna hairpin ... See more keywords
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Recent progress in the construction of polymers with advanced chain structures via hybrid, switchable, and cascade chain-growth polymerizations

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Published in 2021 at "Polymer Chemistry"

DOI: 10.1039/d1py00274k

Abstract: Recent progress of hybrid, switchable, and cascade chain-growth polymerizations for the preparation of polymers with advanced chain structures with diverse compositions has been summarized. read more here.

Keywords: chain; switchable cascade; chain growth; hybrid switchable ... See more keywords
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Extending chain growth beyond C1 → C4 in CO homologation: aluminyl promoted formation of the [C5O5]5- ligand.

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Published in 2022 at "Chemical communications"

DOI: 10.1039/d2cc01554d

Abstract: (NONDipp)Al-K(TMEDA)2 (NONDipp = [O(SiMe2NDipp)2]2-, Dipp = 2,6-iPr2C6H3), containing an Al-K bond, activates and reductively couples cabon monoxide gas to form the [C4O4]4- ligand. This oxocarbon anion is thermally isomerised in the presence of CO and… read more here.

Keywords: c5o5 ligand; chain growth; ligand; aluminyl ... See more keywords
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Thermal and Calorimetric Investigations of Some Phosphorus-Modified Chain Growth Polymers 2: Polystyrene

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Published in 2022 at "Polymers"

DOI: 10.3390/polym14081520

Abstract: In this paper, we report on the thermal degradation behaviours and combustion attributes of some polymers based on polystyrene (PSt). Here, both additive and reactive strategies were employed, through the bulk polymerization route, where the… read more here.

Keywords: calorimetric investigations; phosphorus modified; thermal calorimetric; chain growth ... See more keywords