A double metal cyanide complex catalyst (DMC) was used to catalyze the ring-opening polymerization of γ-glycidoxypropyltrimethoxysilane

and homopolymers PKH560 with regular structure were obtained.The molecular structure of the polymer was analyzed and characterized by FTIR

29Si-NMR and 1H-NMR.It was found that DMC can successfully catalyze the ring-opening polymerization of γ-glycidoxypropyltrimethoxysilane

and polymers of high molecular weight were obtained.The number average molecular weight was greater than 10000

and the molecular weight distribution index was between 1.10 and 1.35

both of which were measured by gel permeation chromatography/multi-angle laser light scattering (GPC/MALLS).By varying reaction time

the polymers with different number average molecular weight were obtained.The results of GPC/MALLS show that the number average molecular weight of polymers and the monomer conversion present a linear growth relationship

and the molecular weight distribution of polymers is also narrow (Mw/Mn is between 1.10 and 1.35)

which indicate that the polymerization has a characteristic of living polymerization.