Palladium-Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides.
Sign Up to like & getrecommendations! Published in 2020 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202000067
Abstract: The palladium-catalyzed CS cross coupling reaction is investigated as a novel efficient tool for the synthesis of poly(phenyl)sulfide derivatives. The reaction proceeds through the polycondensation of dibromo arenes with a H2 S-surrogate to yield poly(aryl)sulfides.… read more here.
Keywords: synthesis poly; poly; palladium catalyzed; polycondensation ... See more keywords
Evolution of the polydispersity of ammonium polyphosphate in a reactive extrusion process: Polycondensation mechanism and kinetics
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2018.11.031
Abstract: Abstract Ammonium polyphosphate (APP) was prepared by the co-rotating twin-screw extrusion of monoammonium phosphate (MAP) and urea for potential application as a slow-release fertilizer. A fundamental study to establish a possible polycondensation mechanism was carried… read more here.
Keywords: ammonium polyphosphate; polycondensation; mechanism; mechanism kinetics ... See more keywords
Superior photodegradation of organic compounds and H2O2 production over tungsten oxide/carbon nitride heterojunction with sizable heptazine units: Dual polycondensation and interface engineering
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2021.131710
Abstract: Abstract A novel ultrathin tungsten oxide/carbon nitride heterojunction photocatalyst with exceptional physical and optical properties was rationally prepared through thermal polycondensation of a preorganized supramolecular structure along with ammonium tungstate(VI). Investigation of the structure, morphology,… read more here.
Keywords: heterojunction; polycondensation; tungsten oxide; carbon nitride ... See more keywords
Facile access to conjugated polymers under aerobic conditions via Pd-Catalyzed direct arylation and aryl amination polycondensation
Sign Up to like & getrecommendations! Published in 2020 at "Polymer"
DOI: 10.1016/j.polymer.2020.122927
Abstract: Abstract Facile polymerization reaction conditions were developed for synthesizing conjugated polymers via direct arylation and the Buchwald-Hartwig aryl amination reactions under aerobic conditions. Refluxing the reaction solvent and using XPhos Pd G2 as a precatalyst… read more here.
Keywords: direct arylation; polycondensation; aryl amination; conjugated polymers ... See more keywords
Nanoarchitecture Manipulation by Polycondensation on KCl Crystals toward Crystalline Lamellar Carbon Nitride for Efficient H2O2 Photoproduction.
Sign Up to like & getrecommendations! Published in 2023 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c22366
Abstract: A lamellar carbon nitride (CN) framework is one of the most promising materials for solar-driven hydrogen peroxide production. The low dielectric constant of the organic CN framework leads to severe recombination of the excitons, and… read more here.
Keywords: hydrogen peroxide; lamellar carbon; polycondensation; carbon nitride ... See more keywords
Homoconjugated Acids as Low Cyclosiloxane-Producing Silanol Polycondensation Catalysts
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DOI: 10.1021/acsomega.0c03883
Abstract: Polycondensation of α,ω-disilanols is a foundational technology for silicones producers. Commercially, this process is carried out with strong Brønsted acids and bases, which generates cyclosiloxane byproducts. Homoconjugated acids (a 2:1 complex of acid:base or a… read more here.
Keywords: polycondensation catalysts; silanol polycondensation; polycondensation; acid ... See more keywords
Hyperbranched polyesters by polycondensation of fatty acid-based ABn-type monomers
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DOI: 10.1039/c6gc02294d
Abstract: Widely available vegetable oils were readily derivatized into chemically pure ABn-type monomers (n = 2 or 3). Their polymerization led to unprecedented hyperbranched polyesters. Four different AB2/AB3-type monomers bearing one A-type methyl ester and two… read more here.
Keywords: hyperbranched polyesters; type monomers; polycondensation; abn type ... See more keywords
Copolymerization of lactones and bioaromatics via concurrent ring-opening polymerization/polycondensation
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DOI: 10.1039/c6gc03238a
Abstract: The general and efficient copolymerization of lactones with hydroxy-acid bioaromatics was accomplished via a concurrent ring-opening polymerization (ROP) and polycondensation methodology. Suitable lactones were L-lactide or e-caprolactone and four hydroxy-acid comonomers were prepared as hydroxyethyl… read more here.
Keywords: methodology; ring opening; copolymerization lactones; polycondensation ... See more keywords
Organostannane-free polycondensation and eco-friendly processing strategy for the design of semiconducting polymers in transistors
Sign Up to like & getrecommendations! Published in 2020 at "Materials horizons"
DOI: 10.1039/d0mh00138d
Abstract: Polymeric semiconductors have attracted a lot of attention in the field of organic field-effect transistors (OFETs) due to their potential application in solution-processable flexible electronics. In order to get high performance polymers that meet industry… read more here.
Keywords: eco friendly; friendly processing; organostannane free; polycondensation ... See more keywords
Polycondensation Kinetics: 2. Time-Dependent29Si NMR Spectra of Poly-Dimethyldimethoxysilane
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DOI: 10.1134/s001814392003008x
Abstract: The polycondensation of dimethyldimethoxysilane has been studied by 29Si NMR to high degrees of conversion at pH 2.8. The relative concentrations of nonbonded Si atoms (D0) and bound by one (D1) and two (D2) Si–O–Si… read more here.
Keywords: polycondensation kinetics; polycondensation; time dependent29si; kinetics time ... See more keywords
Poly(Ethylene Furanoate) along Its Life-Cycle from a Polycondensation Approach to High-Performance Yarn and Its Recyclate
Sign Up to like & getrecommendations! Published in 2021 at "Materials"
DOI: 10.3390/ma14041044
Abstract: We report on the pilot scale synthesis and melt spinning of poly(ethylene furanoate) (PEF), a promising bio-based fiber polymer that can heave mechanical properties in the range of commercial poly(ethylene terephthalate) (PET) fibers. Catalyst optimization… read more here.
Keywords: along life; furanoate along; ethylene furanoate; poly ethylene ... See more keywords