CAS 70131-67-8

Polisilossani, di-Me, terminati con idrossile

Descrizione:

Polisilossani, di-Me, terminati con idrossile, comunemente noto come polidimetilsilossano terminato in idrossile (PDMS), è una classe di polimeri di silicone caratterizzati dalle loro unità di silossano (Si-O) che si ripetono. Questi composti presentano tipicamente una struttura lineare con gruppi metilici (Me) attaccati agli atomi di silicio e gruppi idrossile (–OH) alle estremità terminali. Questa struttura conferisce proprietà uniche, tra cui flessibilità, bassa tensione superficiale e ottima stabilità termica, rendendoli adatti a una varietà di applicazioni. Sono spesso utilizzati come intermedi nella sintesi di elastomeri di silicone, sigillanti e rivestimenti grazie alla loro capacità di formare legami forti con altri materiali. Inoltre, la loro natura idrofobica e bassa tossicità li rendono preziosi nelle formulazioni cosmetiche e nelle applicazioni mediche. La presenza di gruppi idrossile consente ulteriori modifiche chimiche, migliorando la loro versatilità in vari processi industriali. In generale, i polisilossani con questa struttura specifica sono fondamentali in molti campi, tra cui la scienza dei materiali, la farmaceutica e i prodotti di consumo.

Formula: Unspecified

Sinonimi:

• 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

Colore e forma: Liquid, Clear Liquid

Peso molecolare: 0.0

Ref: 10-DMS-S14

Silanol terminated polydimethylsiloxanes cSt 50,000

CAS: 70131-67-8

DMS-S45 - Silanol terminated polydimethylsiloxanes cSt 50,000

Colore e forma: Liquid, Clear

Peso molecolare: 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

Colore e forma: Liquid

Peso molecolare: 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

Colore e forma: Liquid

Peso molecolare: 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

Colore e forma: Liquid

Peso molecolare: 4200.0

Ref: 3H-DMS-S21