Silane-modified polyphenylene ether resin and preparation method thereof

A preparation method of silane-modified polyphenylene ether resin, comprising utilizing a polyphenylene ether resin with hydroxyl groups at both ends to react with a silane, and under reaction with a catalyst, which obtains the silane-modified polyphenylene ether resin, a synthesis reaction formula of which is represented by reaction formula (1):

• wherein in reaction formula (1), R1, R2, R3 and R4 are each independently hydrogen, a linear or branched C1 to C6 alkyl group, R5, R6, R7 and R8 are each independently hydrogen, a linear or branched C1 to C6 alkyl group, R9 is a linear or branched C1 to C6 alkyl group or aryl group, R10 is hydrogen or a C1 to C6 alkyl group, R11 is a functional group with a crosslinkable double bond, Y is a linear, branched or cyclic C1 to C10 alkyl group, W is an integer from 1 to 4, a and b are each independently an integer from 0 to 50, and n and m are each independently an integer from 1 to 4,
• wherein the catalyst is ethyl triphenyl phosphine chloride (ETPPCl), ethyltriphenylphosphonium bromide (ETPPBr), ethyl triphenyl phosphine iodide (ETPPI), ethyl triphenyl phosphine acetate (ETPPAAc), tetrabutylammonium bromide (TBAB), triphenyl phosphine (TPP) or tetra-n-butyl ammonium acetate (TBAAc).