1806-29-7, Name is 2,2-Biphenol, molecular formula is C12H10O2, belongs to chiral-catalyst compound, is a common compound. In a patnet, once mentioned the new application about 1806-29-7, Quality Control of: 2,2-Biphenol
A new cyclolinear phosphazene polyurethane: Synthesis from a diisocyanate and a bis-spiro-substituted cyclotriphosphazene diol
New cyclolinear polymers from bifunctional organic molecules and cyclotriphosphazenes containing two reactive groups have been synthesized. The reaction between 2,2-bis(4-hydroxyphenoxy)-bis[spiro(2?,2?-dioxy-1?,1?- biphenylyl)]cyclotriphosphazene 3, obtained by the reaction of 2,2-bis(4-methoxyphenoxy)-bis[spiro(2?,2?-dioxy-1?,1?- biphenylyl)] cyclotriphosphazene 2 with BBr,/H2O, and hexamethylene dilsocyanate (HDI) led to the new cyclotriphosphazene containing polyurethane 4. The structures of 4 and also of compounds involved in its synthesis were investigated by 31P. 13C and 1H NMR, infrared spectroscopy, mass spectrometry and elemental analysis. The molecular weight was determined by SEC analysis. The thermogravimetric behaviour of 4 was compared with that of a similar polyurethane containing a cyclotriphosphazene as a pendant group. The results show that the incorporation of phosphorus atoms into the backbone improves the thermal properties of the polymers.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Quality Control of: 2,2-Biphenol. In my other articles, you can also check out more blogs about 1806-29-7
Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare