The synthesis, characterization and reaction of (propargyloxy)chlorocyclotriphosphazenes

Chen-Yang, Y. W.; Chien, Wan-Jou; Chung, Julie

doi:10.1016/s0277-5387(00)80328-9

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…All 31 P NMR spectra exhibited a clean singlet, which shifted from 20.00 ppm for HCCP to 17.87 and 17.79 ppm for ThioGlyCPZ and GlyCPZ, respectively (Figure S13), indicating that symmetrical products were obtained. 30,31 Moreover, the ESI-HR-MS with the compound's isotopic splitting fully confirmed the formation of the FRs.…”

Section: ■ Results and Discussionmentioning

confidence: 71%

“…The intermediate compounds and the main products were examined by a combination of FTIR, 1 H NMR, 13 C NMR, and 31 P NMR spectroscopy; ATR-FTIR; and ESI-HR-MS (Figure S1 to Figure S16). All 31 P NMR spectra exhibited a clean singlet, which shifted from 20.00 ppm for HCCP to 17.87 and 17.79 ppm for ThioGlyCPZ and GlyCPZ, respectively (Figure S13), indicating that symmetrical products were obtained. , Moreover, the ESI-HR-MS with the compound’s isotopic splitting fully confirmed the formation of the FRs.…”

Section: Resultsmentioning

confidence: 85%

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Water-Soluble Cyclophosphazenes as Durable Flame-Retardant Finishes for Nylon/Cotton Blend Fabrics

Zilke

Ali

Kamps

et al. 2022

ACS Appl. Polym. Mater.

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Nylon-cotton textile blends (Nyco) are known to be challenging substrates regarding their flame-retardant functionalization and its durability. In this study, two different water-soluble flame retardants based on cyclophosphazene together with glycerol (GlyCPZ) and thioglycerol (ThioGlyCPZ) were synthesized enabling a waterborne finishing for Nyco. An extensive investigation of the flame-retardant performance and mechanism as well as the washing fastness was conducted. Thermogravimetric analysis (TGA) indicated changed degradation mechanisms for treated samples, which resulted in a reduced heat release capacity in microscale combustion calorimetry (MCC) measurements and an increased char yield. As a consequence, the limiting oxygen index (LOI) was enhanced from 20% for pure Nyco to 23% and 27.5% for GlyCPZ and ThioGlyCPZ, respectively. Also, the standardized flammability test according to ISO 15025 was passed. In addition, self-extinguishing characteristics were observed even after 10 washing cycles at 80 °C confirming the durability of the finishing. Sulfur was found to be gas phase active, as recombined sulfur compounds were identified in pyrolysis gas chromatography mass spectrometry (Py-GC/MS). Phosphorus was mainly active in the condensed phase, which was verified by analyses of digested burned textile samples using inductively coupled optical emission spectroscopy (ICP-OES).

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Section: ■ Results and Discussionmentioning

confidence: 71%

Section: Resultsmentioning

confidence: 85%