CAS 70131-67-8

Polisiloxanos, di-Me, terminados en hidroxilo

Descripción:

Polisiloxanos, di-Me, terminados en hidroxilo, comúnmente conocido como polidimetilsiloxano terminado en hidroxilo (PDMS), es una clase de polímeros de silicona caracterizados por sus unidades de siloxano (Si-O) que se repiten. Estos compuestos suelen exhibir una estructura lineal con grupos metilo (Me) unidos a los átomos de silicio y grupos hidroxilo (–OH) en los extremos terminales. Esta estructura confiere propiedades únicas, incluyendo flexibilidad, baja tensión superficial y excelente estabilidad térmica, lo que los hace adecuados para una variedad de aplicaciones. A menudo se utilizan como intermedios en la síntesis de elastómeros de silicona, selladores y recubrimientos debido a su capacidad para formar enlaces fuertes con otros materiales. Además, su naturaleza hidrofóbica y baja toxicidad los hacen valiosos en formulaciones cosméticas y aplicaciones médicas. La presencia de grupos hidroxilo permite una mayor modificación química, mejorando su versatilidad en varios procesos industriales. En general, los polisiloxanos con esta estructura específica son fundamentales en muchos campos, incluyendo la ciencia de materiales, la farmacéutica y los productos de consumo.

Fórmula: Unspecified

Sinónimos:

• 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

Silanol terminated polydimethylsiloxane cSt 35-45

CAS: 70131-67-8

Forma y color: Liquid, Clear Liquid

Peso molecular: 0.0

Ref: 10-DMS-S14

Silanol terminated polydimethylsiloxanes cSt 50,000

CAS: 70131-67-8

DMS-S45 - Silanol terminated polydimethylsiloxanes cSt 50,000

Forma y color: Liquid, Clear

Peso molecular: 0.0

Ref: 10-DMS-S45

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 3,500 cSt

CAS: 70131-67-8

DMS-S33: Silanol Terminated PDMS, 3,500 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-S33 Properties
Viscosity: 3,500 cStMolecular Weight: 43,500 g/molWt.% OH: 0.8OH (eq/kg): 0.045-0.050

Forma y color: Liquid

Peso molecular: 43500.0

Ref: 3H-DMS-S33

SILANOL TERMINATED POLYDIMETHYLSILOXANE,18,000 cSt

CAS: 70131-67-8

DMS-S42: Silanol Terminated PDMS, 18,000 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-S42 Properties
Viscosity: 18,000 cStMolecular Weight: 77,000 g/molWt.% OH: 0.4OH (eq/kg): 0.023-0.025

Forma y color: Liquid

Peso molecular: 77000.0

Ref: 3H-DMS-S42

SILANOL TERMINATED POLYDIMETHYLSILOXANE, 90-120 cSt

CAS: 70131-67-8

DMS-S21: Silanol Terminated PDMS, 90-120 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-S21 Properties
Viscosity: 90-120 cStMolecular Weight: 4,200 g/molWt.% OH: 0.8-0.9OH (eq/kg): 0.47-0.53

Forma y color: Liquid

Peso molecular: 4200.0

Ref: 3H-DMS-S21