摘要:
Compositions of polyphosphazene-containing polymers and methods of preparation thereof are provided. The disclosed compositions encompass telechelic functionalized polyphosphazenes and a variety of block and graft polyphosphazene-polystyrene, polyphosphazene-polysiloxane, and polyphosphazene-ROMP of norbornene copolymers. Methods for the preparation of such compositions generally involve generation of a polydichlorophosphazene species, attachment of a function group to the resultant polyphosphazene compound, and coupling the functionalized polyphosphazene with a corresponding organic or inorganic polymers or polymerizing the functionalized polyphosphazene with corresponding organic molecules.
摘要:
A process for the preparation of polyphosphazenes is provided that includes the cationic solution polymerization reaction of a phosphoranimine, using a main group or transition metal halide, or other appropriate halide salt, including a linear phosphazene salt of any chain length, or a preformed non-phosphazene polymer containing a main or transition metal chloride, as an initiator. In a preferred embodiment, triarmed-star polyphosphazenes having the formula N{RN(H)R'.sub.2 P--(N.dbd.PR'.sub.2).sub.n }.sub.3 are prepared via this method. Also, a methods for synthesis of the monomer Cl.sub.3 P.dbd.NSiMe.sub.3 and cyclic trimer N.sub.3 P.sub.3 X.sub.6 from the reactants N(SiR.sub.3).sub.3 and PX.sub.5 are also described.
摘要翻译:提供了一种制备聚磷腈的方法,其包括使用主要基团或过渡金属卤化物或其它合适的卤化物盐(包括任何链长的线性磷腈盐)或预成型非离子表面活性剂的正亚胺的阳离子溶液聚合反应, 含有主要或过渡金属氯化物的磷腈聚合物作为引发剂。 在优选的实施方案中,通过该方法制备具有式N {RN(H)R'2P-(N = PR'2)n} 3的三臂星型聚磷腈。 此外,还描述了从反应物N(SiR 3)3和PX 5合成单体Cl 3 P = NSiMe 3和环状三聚体N 3 P 3 X 6的方法。