1,721,017 research outputs found
ciclofosfazeni contenenti gruppi di acido acetil salicilico, procedimento di preparazione ed utilizzazione
No full textviene descritta la sintesi di ciclo e polifosfazeni contenenti acido acetil salicilic
Ciclo- e polifosfazeni arilossisostituiti contenenti funzioni epossidiche
No full textviene descritta la sintesi di ciclo e poli fosfazeni contenenti gruppo arilossi sostituiti a potenziale attività di fotoiniziazion
Functionalization of poly(organophosphazenes) .6. Substituent effect on the grafting reaction of maleic anhydride onto phenoxy-substituted phosphazene polymers
No full textIn this paper we describe the solution functionalization reaction of six phenoxy-substituted poly(organophosphazenes) with maleic anhydride and the effect of the phosphazene substituents on the overall grafting yield of anhydride moieties. It was found that the phosphazene polymer substituted with 4-ethylphenoxy groups is the most reactive of the whole series of exploited materials, while that bearing 4-t-butylphenoxy groups is the most inert one. This experimental reactivity trend observed in the grafting process is accounted for on the basis of both thermodynamic and steric factors
Fotoiniziatori ciclofosfazenici multifunzionali contenenti gruppi dialcossiacetofenone: sintesi e utilizzazione
No full textviene descritta la sintesi di ciclofosfazeni contenenti gruppi derivati da dialcossi acetofenone con potenziale attività di fotocatalis
New materials based on the reaction of cyclo- and poly-(organo phosphazenes) with SiO2, TiO2 and ZrO2 precursors
No full text5-Bromomethyl-2-iminotetrahydrofuran hydrobromide: A useful cyclic imidate in the synthesis of benzazole-fused heterocycles
No full textThe reaction of the 5-bromethyl-2-iminotetrahydrofuran hydrobromide with o-phenylene dinucleophiles affords 2-substitutd benzazoles. Thermal cyclization via azolium salt to saturated benzazole-azine is also described
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