Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel phosphoramidate flame retardants
Organophosphorus flame retardants containing nitrogen as an element is of great importance for application on cellulosic and other synthetic polymers because of possible phosphorus- nitrogen synergism. The authors have recently developed novel phosphoramidate compounds for application on cellulose and other polymers. The advantage of these phosphoramidates is that they are synthesized from cheap intermediates with excellent yields. Most of these phosphoramidates are bifunctional in nature because of presence of hydroxyl and amide groups which could be crosslinked onto polymers by using suitable crosslinker. In this presentation the authors would report synthesis of novel phosphoramidate, structure property relationship of phosphoramidates (thermal degradation studies and burning tests) and application on cotton (durable finishing treatments with suitable crosslinkers). The methyl phosphate and phosphoramide derivatives showed higher flame retardancy compared to the ethyl derivatives. Further hydroxyl ethyl phosphoramide derivatives showed higher flame retardant properties. Durable flame retardancy of cotton was achieved by treating cotton with PAHEDE in combination with DMDHEU and MF cross-linkers.
Novel phosphoramidate flame retardants
Organophosphorus flame retardants containing nitrogen as an element is of great importance for application on cellulosic and other synthetic polymers because of possible phosphorus- nitrogen synergism. The authors have recently developed novel phosphoramidate compounds for application on cellulose and other polymers. The advantage of these phosphoramidates is that they are synthesized from cheap intermediates with excellent yields. Most of these phosphoramidates are bifunctional in nature because of presence of hydroxyl and amide groups which could be crosslinked onto polymers by using suitable crosslinker. In this presentation the authors would report synthesis of novel phosphoramidate, structure property relationship of phosphoramidates (thermal degradation studies and burning tests) and application on cotton (durable finishing treatments with suitable crosslinkers). The methyl phosphate and phosphoramide derivatives showed higher flame retardancy compared to the ethyl derivatives. Further hydroxyl ethyl phosphoramide derivatives showed higher flame retardant properties. Durable flame retardancy of cotton was achieved by treating cotton with PAHEDE in combination with DMDHEU and MF cross-linkers.
Novel phosphoramidate flame retardants
Neuartige Phosphoramidat-Entzündungsverzögerer
Gaan, Sabyasachi (Autor:in) / Salimova, Victoria (Autor:in) / Ottinger, Simon (Autor:in)
2008
13 Seiten, 9 Bilder, 1 Tabelle, 17 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
PHOSPHORAMIDATE FLAME RETARDANTS: MECHANISM AND APPLICATION
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