Notiz über einige Derivate der Thiodiglykolsäure

Schurz, J.; Kromer, Günther

doi:10.1002/cber.19550881106

Cited by 3 publications

(1 citation statement)

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“…From this data, it could be observed that the Lyocell fibers exhibiting higher LOI have a lesser fibrillability. Schurz discussed the lateral clusters of cellulose chains in terms of crystalline orientation-physical property relationship in Lyocell fibers and their importance in determining the fibrillation behavior [43]. Furthermore, comparison of Figure 7(b) with (c) has already revealed that the fibrillation is dependent on molecular weight and dope concentrations.…”

Section: Fibrillation Behavior Of Cotton Linter Based Regenerated Celmentioning

confidence: 98%

Physical properties and fibrillation tendency of regenerated cellulose fiber dry jet-wet spun from high-molecular weight cotton linter Pulp/NMMO solution

et al. 2015

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This article describes an efficient method for suppressing fibrillation in as-spun regenerated cellulose fiber prepared using high molecular weight (DP 1600) cotton linter pulp/NMMO solution as the starting materials via Lyocell process. The regenerated cellulose fibers were spun using a custom-made lab scale dry jet-wet spinning apparatus, and their physical properties such as birefringence, crystallinity, orientation and lateral order indices, and fibrillation tendency were investigated. Further, the relationship between chain orientation and fibrillation tendency in the cellulose fibers were discussed as a function of varying molecular weights (DP 1000, 1600, and 1600/1000 (95/5) mixture), dope concentrations (6-13 wt%) and take-up speed (10, 30, and 50 m/min). Regenerated cellulose fibers spun from high molecular weight cotton linter pulp (DP 1600) at lower dope concentrations (6-8 wt%) exhibit least fibrillation behavior, whereas the cellulose fibers spun from higher dope concentration (9 wt%) using low molecular weight cotton linter pulp (DP 1000) as well as the mixture (DP 1600/1000 (95/5)) exhibited considerable amount of fibrillation. The results are reported in detail.

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Section: Fibrillation Behavior Of Cotton Linter Based Regenerated Celmentioning

confidence: 98%

Physical properties and fibrillation tendency of regenerated cellulose fiber dry jet-wet spun from high-molecular weight cotton linter Pulp/NMMO solution

et al. 2015

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Über chelatbildende Salicylsäure‐Analoge der Thiophenreihe

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Erlenmeyer

1964

Helvetica Chimica Acta

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Palladium(ii) complexes of N,N-diphenylacetamide based thio/selenoethers and flower shaped Pd₁₆S₇and prismatic Pd₁₇Se₁₅nano-particles tailored as catalysts for C–C and C–O coupling

Singh

2017

Dalton Trans.

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2-Bromo-N,N-diphenylacetamide (P1) prepared by reacting diphenylamine with α-bromoacetyl bromide, on treatment with NaS and NaSe generated in situ, has resulted in thio and selenoether ligands, L1 ((PhNCOCH)S) and L2 ((PhNCOCH)Se), respectively. Reacting these ligands with NaPdCl in ethanol at room temperature resulted in their complexes [Pd(L1/L2)Cl] (C1/C2). P1, L1, L2, C1 and C2 were characterized by H,C{H} and Se{H} NMR spectroscopy, IR spectroscopy and High resolution mass spectrometry (HR-MS). Single crystal structures of all the five compounds were determined by X-ray diffraction. In both C1 and C2 the geometry of Pd is nearly square planar. Flower shaped PdS (size 26-50 nm) and prismatic PdSe NPs (size 20-55 nm) were synthesized by a single source precursor route (thermolysis at ∼280 °C in trioctylphosphine) from air and moisture insensitive C1 and C2, respectively. These shapes of the two nanophases were unknown hitherto. They were characterized by powder X-ray diffraction (PXRD), SEM-EDX and HR-TEM and found to show good catalytic activity for Suzuki-Miyaura (Pd loading 0.5 mol%; yield up to 96%) and C-O (Pd loading 0.5 mol%; yield up to 96%) coupling reactions (at 100 °C) of aryl bromides with phenylboronic acid and phenol, respectively. The complexes C1 and C2 were found very efficient for Suzuki-Miyaura and C-O coupling as revealed by their optimum loading of 0.0001-0.01 and 0.1 mol% of Pd, respectively, for the two reactions. The reuse of the complexes or NPs as a catalyst is demonstrated.

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Notiz über einige Derivate der Thiodiglykolsäure

Abstract: Durch Umsetzung von Chloressigsäure‐Derivaten mit Natriumsulfid werden einige Thiodiglykolsäure‐Abkömmlinge dargestellt. Ihre UV‐Spektren werden mitgeteilt.

Cited by 3 publications

References 4 publications

Physical properties and fibrillation tendency of regenerated cellulose fiber dry jet-wet spun from high-molecular weight cotton linter Pulp/NMMO solution

Physical properties and fibrillation tendency of regenerated cellulose fiber dry jet-wet spun from high-molecular weight cotton linter Pulp/NMMO solution

Über chelatbildende Salicylsäure‐Analoge der Thiophenreihe

Palladium(ii) complexes of N,N-diphenylacetamide based thio/selenoethers and flower shaped Pd₁₆S₇and prismatic Pd₁₇Se₁₅nano-particles tailored as catalysts for C–C and C–O coupling

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Notiz über einige Derivate der Thiodiglykolsäure

Abstract: Durch Umsetzung von Chloressigsäure‐Derivaten mit Natriumsulfid werden einige Thiodiglykolsäure‐Abkömmlinge dargestellt. Ihre UV‐Spektren werden mitgeteilt.

Cited by 3 publications

References 4 publications

Physical properties and fibrillation tendency of regenerated cellulose fiber dry jet-wet spun from high-molecular weight cotton linter Pulp/NMMO solution

Physical properties and fibrillation tendency of regenerated cellulose fiber dry jet-wet spun from high-molecular weight cotton linter Pulp/NMMO solution

Über chelatbildende Salicylsäure‐Analoge der Thiophenreihe

Palladium(ii) complexes of N,N-diphenylacetamide based thio/selenoethers and flower shaped Pd16S7and prismatic Pd17Se15nano-particles tailored as catalysts for C–C and C–O coupling

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Palladium(ii) complexes of N,N-diphenylacetamide based thio/selenoethers and flower shaped Pd₁₆S₇and prismatic Pd₁₇Se₁₅nano-particles tailored as catalysts for C–C and C–O coupling