13264-13-6Relevant academic research and scientific papers
Cyclotriphosphazene fire retardant with beta-crystal inducing nucleation effect and synthetic method thereof
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Paragraph 0015, (2019/06/07)
The invention relates to a cyclotriphosphazene fire retardant with a beta-crystal inducing nucleation effect and a synthetic method thereof. The synthetic method of the cyclotriphosphazene fire retardant with the beta-crystal inducing nucleation effect is characterized by comprising the steps of adding hexachlorocyclotriphosphazene to a container filled with a solvent; uniformly stirring the hexachlorocyclotriphosphazene and the solvent to obtain a mixed solution A; uniformly mixing a reactant containing a rigid group and an acid-binding agent to obtain a mixed solution B; dripping the mixed solution B into the mixed solution A; enabling the mixed solution B to react with the mixed solution A for 6-10 hours at 80-120 degrees centigrade; and separating a reactant to obtain the cyclotriphosphazene fire retardant with the beta-crystal inducing nucleation effect. The cyclotriphosphazene fire retardant with the beta-crystal inducing nucleation effect, provided by the invention, has the advantages that the heat resistance of the cyclotriphosphazene is utilized, the charring amount is larger, the heat stability is higher, polypropylene can be induced to generate a certain quantity of betacrystals, and therefore, an aggregation state structure of a polypropylene composite material is changed to realize a purpose of jointly improving the flame retardant property and the mechanical property.
Selective N-alkylation of amines with alcohols by using non-metal-based acid-base cooperative catalysis
Du, Ya,Oishi, Shunsuke,Saito, Susumu
supporting information; experimental part, p. 12262 - 12267 (2011/11/29)
Learning to cooperate: A straightforward method for the selective N-mono- and dialkylation of amines with alcohols by means of non-metal-based catalysis promoted by TAPC is reported (see scheme). Selectivity of the N-mono- and dialkylation, substrate scope and functional-group tolerance are highlighted with respect to each amine (1° and 2°; aromatic and aliphatic) and alcohol (1°, 2° and 3°; benzylic and aliphatic) component. Copyright
Supramolecular variations on a molecular theme: The structural diversity of phosphazenes (RNH)6P3N3 in the solid state
Bickley, Jamie F.,Bonar-Law, Richard,Lawson, Gavin T.,Richards, Philip I.,Rivals, Frederic,Steiner, Alexander,Zacchini, Stefano
, p. 1235 - 1244 (2007/10/03)
Herein, we introduce an extremely 'soft' tecton, which interacts via 'soft' synthons displaying an unprecedented variety of supramolecular architectures in the solid state. Hexakis(organoamino) cyclotriphosphazene derivatives, (RNH)6P3/su
