Technical Library

Outline

Monodisperse silicones offer certain advantages over standard telechelic silicones. They have a discrete molecular weight and no low molecular weight non-functional cyclic siloxanes that can migrate out of the fluid or materials produced with them. Higher molecular weight vinyl-functional materials can be used as base silicones for 2-part RTVs.

Vinyl-Terminated Polydimethylsiloxanes, monodisperse

Product CodeViscosity (cSt)Molecular WeightWt % VinylVinyl (eq/kg)Density
DMS-Vm311,00028,0000.18-0.260.07-0.100.97
DMS-Vm355,00049,5000.10-0.130.04-0.050.97
DMS-Vm4110,00062,7000.08-0.120.03-0.040.97

Hydride-Terminated Polydimethylsiloxanes, monodisperse

Product CodeViscosity (cSt)Molecular WeightWt % HydrideEquivalent WeightRefractive IndexDensity
DMS-Hm15503,000-3,5000.071,6251.4030.96
DMS-Hm211005,5000.042,7501.4030.96
DMS-Hm2550017,2000.018,6001.4030.97

α-Monovinyl-Ω-Monohydride-Terminated Polydimethylsiloxane, CAS: [104780-63-4], TSCA

Product CodeViscosity (cSt)Molecular WeightRefractive IndexDensity
DMS-HV1540-602,000-3,0001.4040.96
DMS-HV22150-25010,0001.4030.97
DMS-HV31600-1,00025,0001.4030.97

α-Monovinyl-Monophenyl-Ω-Monohydride-Terminated Polydimethylsiloxane, CAS: [1422279-25-1]

Product CodeViscosity (cSt)Molecular WeightRefractive IndexDensity
PMM-HV12202,0001.41350.97