Technical Library

Outline

Polydimethylsiloxanes with hydrolyzable functionality react with water to produce silanol-terminated fluids of equivalent or higher degrees of polymerization. Polymers with this category of reactivity are almost never directly hydrolyzed. Chlorine- and dimethylamine-terminated fluids are usually employed in ordered chain extension and block polymer synthesis, particularly urethanes and polycarbonates. Acetoxy- and dimethylamine-terminated fluids can also be used as unfilled bases for rapid-cure RTVs.

Chlorine-Terminated Polydimethylsiloxanes, CAS: [67923-13-1], TSCA

Product CodeViscosity (cSt)Molecular WeightDensity
DMS-K053-8425-6501.00
DMS-K1320-502,000-4,0000.99
DMS-K26500-80015,000-20,0000.99

Chlorine-Terminated Nonafluorohexylmethylsiloxane-Dimethylsiloxane Copolymers, CAS: [908858-79-7], TSCA-L

Product CodeViscosity (cSt)Molecular WeightDensity
FMS-K115-15500-1,0001.46

Diacetoxymethyl Terminated PolyDimethylsiloxanes, CAS: [158465-54-4], TSCA

Product CodeViscosity (cSt)Molecular WeightDensity
DMS-D332,000-4,00036,0000.99

Dimethylamino-Terminated PolyDimethylsiloxanes, CAS: [67762-92-9], TSCA

Product CodeViscosity (cSt)Molecular WeightDensity
DMS-N053-8450-6000.93
DMS-N1215-301,550-2,0000.95
hazy liquids

Ethoxy-Terminated Polydimethylsiloxanes, CAS: [70851-25-1], TSCA

Product CodeViscosity (cSt)Molecular WeightDensity
DMS-XE115-10800-9000.94

Triethoxysilylethyl-Terminated Polydimethylsiloxanes, CAS: [195158-81-7]/[210548-76-8]

Product CodeViscosity (cSt)Molecular WeightDensity
DMS-XT118-12600-9000.96

Methoxy-Terminated Polydimethylsiloxane, CAS: [68951-97-3], TSCA

Product CodeViscosity (cSt)Molecular WeightDensity
DMS-XM115-12900-1,0000.94

Methoxymethylsiloxane-Dimethylsiloxane Copolymer, CAS: [68440-84-6], TSCA

Product CodeViscosity (cSt)Mole % MethoxymethylsiloxaneDensityComments
XMS-5025.22-510-200.8320% in isopropanol
Methoxy-terminated with branch structure