New Approach for Synthesis of Hexa (Allylamino) Cyclotriphosphazene Catalysed by an Ecologic and Friendly Catalyst Layered Called Maghnite-H+ (Algerian MMT).
Cyclic and linear phosphazenes are characterized by a repeating unit [-N=PR2-]n in which nitrogen is trivalent and phosphorus pentavalent. Ring sizes for the cyclic derivatives vary from three to about forty repeating units whereas for the linear polyphosphazenes derivatives are known which contain up to 15000 repeating units. Algerien (MMT) called “Maghnite” a montmorillonite sheet silicate clay, exchanged with protons to produce “H-Maghnite” is an efficient catalyst for cationic polymerisation of many heterocyclic and vinylic monomers [1] . The structural compositions of “Maghnite” have already been determined. A phosphazenes derivative, hexa-allylamino-cyclotriphosphazene (HACTP) reaction was performed under optimum conditions at 20°C. Experiments revealed that the reaction induced by “H-Maghnite” proceeds in bulk. The prepared samples were subsequently characterized by FTIR spectroscopy, 1H-NMR spectroscopy and. It should be noted that the product coating containing 1wt. %, 3wt. % and 5wt. % of clay loading was found to exhibit an observable structure, physicochemical properties and controlled molecular weight.
