CAS 70131-67-8

Polysiloxanes, di-Me, hydroxy-terminated

Description:

Polysiloxanes, di-Me, hydroxy-terminated, commonly referred to as hydroxyl-terminated polydimethylsiloxane (PDMS), are a class of silicone polymers characterized by their repeating siloxane (Si-O) units. These compounds typically exhibit a linear structure with methyl groups (Me) attached to the silicon atoms and hydroxyl (–OH) groups at the terminal ends. This structure imparts unique properties, including flexibility, low surface tension, and excellent thermal stability, making them suitable for a variety of applications. They are often used as intermediates in the synthesis of silicone elastomers, sealants, and coatings due to their ability to form strong bonds with other materials. Additionally, their hydrophobic nature and low toxicity make them valuable in cosmetic formulations and medical applications. The presence of hydroxyl groups allows for further chemical modification, enhancing their versatility in various industrial processes. Overall, polysiloxanes with this specific structure are integral to many fields, including materials science, pharmaceuticals, and consumer products.

Formula: Unspecified

Synonyms:

• Poly(dimethylsiloxane),hydroxy
• Sh-Qy
• α-Hydro-ω-hydroxypoly(dimethylsiloxane)
• Hydroxy silicone oil
• Polydimethylsiloxane, silanol terminated
• PS 195
• OH Polymer
• Polysiloxanes, di-Me, hydroxy-terminated
• Hydroxy-terminated di-Me siloxanes
• Di-Me hydroxy-terminated siloxanes
• Siloxanes and Silicones, di-Me, hydroxy-terminated

Polydimethylsiloxane, hydroxy terminated, M.W. 4200

CAS: 70131-67-8

Polydimethylsiloxane is frequently used in a liquid containing 4-5% silica gel, emulsifiers and preservatives. It is employed in applications like contact lenses, medical devices, elastomers, in shampoos, food (antifoaming agent), caulking, lubricants, kinetic sand , and heat-resistant tiles. PDMS i

Formula: HOSi(CH₃)₂OnH

Color and Shape: Clear liquid

Ref: 02-043769

Polydimethylsiloxane, hydroxy terminated, M.W. 4200

CAS: 70131-67-8

Formula: C₂H₈O₂Si

Purity: 98%

Color and Shape: Liquid

Molecular weight: 92.1692

Ref: IN-DA003TUE

Poly(dimethylsiloxane), hydroxy terminated

CAS: 70131-67-8

Poly(dimethylsiloxane), hydroxy terminated

Purity: 25~45 cst

Ref: 54-OR97837

Silanol terminated polydimethylsiloxane cSt 90-120

CAS: 70131-67-8

Color and Shape: Liquid, Clear

Molecular weight: 0.0

Ref: 10-DMS-S21

Silanol terminated polydimethylsiloxane cSt16-32

CAS: 70131-67-8

Color and Shape: Liquid, Clear Liquid

Molecular weight: 0.0

Ref: 10-DMS-S12

Silanol terminated Polydimethylsiloxane cSt 18,000

CAS: 70131-67-8

Color and Shape: Liquid

Molecular weight: 0.0

Ref: 10-DMS-S42

Silanol terminated polydimethylsiloxane cSt 90,000-150,000

CAS: 70131-67-8

DMS-S51 - Silanol terminated polydimethylsiloxane cSt 90,000-150,000

Color and Shape: Liquid, Clear

Molecular weight: 0.0

Ref: 10-DMS-S51

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 90,000-150,000 cSt

CAS: 70131-67-8

DMS-S51: Silanol Terminated PDMS, 90,000-150,000 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S51 Properties
Viscosity: 90,000-150,000 cStMolecular Weight: 139,000 g/molWt.% OH: 0.02OH (eq/kg): 0.010-0.015

Color and Shape: Liquid

Molecular weight: 139000.0

Ref: 3H-DMS-S51

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 1,000 cSt

CAS: 70131-67-8

DMS-S31: Silanol Terminated PDMS, 1,000 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S31 Properties
Viscosity: 1,000 cStMolecular Weight: 26,000 g/molWt.% OH: 0.1OH (eq/kg): 0.055-0.060

Color and Shape: Liquid

Molecular weight: 26000.0

Ref: 3H-DMS-S31

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 16-32 cSt

CAS: 70131-67-8

DMS-S12: Silanol Terminated PDMS, 16-32 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S12 Porperties
Viscosity: 16-32 cStMolecular Weight: 400-700 g/molWt.% OH: 4.5-7.5OH (eq/kg): 2.3-3.5

Color and Shape: Colourless Liquid

Molecular weight: 400-700

Ref: 3H-DMS-S12

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 700-800 cSt

CAS: 70131-67-8

DMS-S27: Silanol Terminated PDMS, 700-800 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S27 Properties
Viscosity: 700-800 StMolecular Weight: 18,000 g/molWt.% OH: 0.2OH (eq/kg): 0.11-0.13

Color and Shape: Liquid

Molecular weight: 18000.0

Ref: 3H-DMS-S27

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 35-45 cSt

CAS: 70131-67-8

DMS-S14: Silanol Terminated PDMS, 35-45 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S14 Properties
Viscosity: 35-45 cStMolecular Weight: 700-1,500 g/molWt.% OH: 30.-4.0OH (eq/kg): 1.7-2.3

Color and Shape: Colourless Liquid

Molecular weight: 700-1500

Ref: 3H-DMS-S14

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 45-85 cSt

CAS: 70131-67-8

DMS-S15: Silanol Terminated PDMS, 45-85 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S15 Properties
Viscosity: 45-85 cStMolecular Weight: 2,000-3,500 g/molWt.% OH: 0.9-1.2OH (eq/kg): 0.53-0.70

Color and Shape: Liquid

Molecular weight: 2000-3500

Ref: 3H-DMS-S15

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 50,000 cSt

CAS: 70131-67-8

DMS-S45: Silanol Terminated PDMS, 50,000 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S45 Properties
Viscosity: 50,000 cStMolecular Weight: 110,000 g/molWt.% OH: 0.03OH (eq/kg): 0.015-0.017

Color and Shape: Liquid

Molecular weight: 110000.0

Ref: 3H-DMS-S45

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 5,000c cSt

CAS: 70131-67-8

DMS-S35: Silanol Terminated PDMS, 5,000 cSt (Telechelic Functional Fluid)
Terminal silanol groups render polydimethylsiloxanes susceptible to condensation under both mild acid and base conditions. They are intermediates for most room temperature vulcanizeable (RTV) condensation cure silicones. The reactivity of silanol fluids is utilized in applications other than RTVs. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity (1,000-10,000 cSt) fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.
DMS-S35 Properties
Viscosity: 5,000 cStMolecular Weight: 49,000 g/molWt.% OH: 0.07OH (eq/kg): 0.039-0.043

Color and Shape: Liquid

Molecular weight: 49000.0

Ref: 3H-DMS-S35

SILANOL TERMINATED POLYDIMETHYLSILOXANES cSt 45-85

CAS: 70131-67-8

DMS-S15 - SILANOL TERMINATED POLYDIMETHYLSILOXANES cSt 45-85

Color and Shape: Liquid, Clear

Molecular weight: 0.0

Ref: 10-DMS-S15

Silanol terminated polydimethylsiloxane cSt 700-800

CAS: 70131-67-8

Color and Shape: Liquid, Clear

Ref: 10-DMS-S27

SILANOL TERMINATED POLYDIMETHYLSILOXANE cSt 2000

CAS: 70131-67-8

Color and Shape: Liquid, Clear Liquid

Molecular weight: 0.0

Ref: 10-DMS-S32

Silanol terminated polydimethylsiloxane cSt 5000

CAS: 70131-67-8

DMS-S35 - Silanol terminated polydimethylsiloxane cSt 5000

Color and Shape: Liquid, Clear

Molecular weight: 0.0

Ref: 10-DMS-S35

Silanol terminated polydimethylsiloxane cSt1000

CAS: 70131-67-8

Color and Shape: Liquid, Clear

Molecular weight: 0.0

Ref: 10-DMS-S31