CAS 18643-08-8

Octadecyldimethylchlorsilan

Beschreibung:

Octadecyldimethylchlorsilan, mit der CAS-Nummer 18643-08-8, ist eine organosiliconische Verbindung, die durch ihre lange hydrophobe Alkylkette und eine Chlorosilan-Funktionalgruppe gekennzeichnet ist. Diese Verbindung erscheint typischerweise als farblose bis blassgelbe Flüssigkeit und ist bekannt für ihre Fähigkeit, selbstorganisierte Monolagen auf verschiedenen Substraten zu bilden, was sie in Anwendungen zur Oberflächenmodifikation wertvoll macht. Ihre hydrophobe Natur wird der Octadecylkette (C18) zugeschrieben, die die Wasserabweisung verbessert und die Oberflächenenergie reduziert. Octadecyldimethylchlorsilan wird häufig in der Herstellung von hydrophoben Beschichtungen sowie in der Vorbereitung von funktionalisiertem Siliziumdioxid und anderen Materialien für den Einsatz in der Elektronik, Biotechnologie und Materialwissenschaft verwendet. Darüber hinaus kann es mit Feuchtigkeit reagieren, um Siloxanbindungen zu bilden, was zur Bildung stabiler Silan-Netzwerke führt. Sicherheitsvorkehrungen sind beim Umgang mit dieser Verbindung erforderlich, da sie die Haut und die Augen reizen kann, und geeignete Lagerbedingungen sollten aufrechterhalten werden, um Hydrolyse zu verhindern.

Formel: C₂₀H₄₃ClSi

InChl: InChI=1S/C20H43ClSi/c1-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-22(2,3)21/h4-20H2,1-3H3

InChI Key: InChIKey=GZGREZWGCWVAEE-UHFFFAOYSA-N

SMILES: C(CCCCCCCCCCCCCCC)CC[Si](C)(C)Cl

Synonyme:

• Chlorooctadecyldimethylsilane
• Dimethyl(octadecyl)chlorosilane
• Dimethyl(octadecyl)silyl chloride
• Dimethyl(octyldecyl)silyl chloride
• N-octadecyldimethylchlorosilane
• Octadecylchlorodimethylsilane
• Octadecyldimethylchlorosilane
• Silane, chlorodimethyloctadecyl-
• Chlorodimethyloctadecylsilane

Dimethyloctadecylchlorosilane

CAS: 18643-08-8

Formel: C₂₀H₄₃ClSi

Reinheit: >97.0%(T)

Farbe und Form: White to Almost white powder to lump

Molekulargewicht: 347.10

Ref: 3B-D1560

Chlorodimethyl-n-octadecylsilane, 95%

CAS: 18643-08-8

Preparation of hydrophobic surfaces, chain terminator

Formel: C₂₀H₄₃ClSi

Reinheit: 95%

Molekulargewicht: 347.1

Ref: 02-042414

Chlorodimethyloctadecylsilane

CAS: 18643-08-8

Formel: C₂₀H₄₃ClSi

Reinheit: 95%

Farbe und Form: Liquid

Molekulargewicht: 347.0939

Ref: IN-DA0034LG

Chlorodimethyl(Octadecyl)Silane

CAS: 18643-08-8

Chlorodimethyl(Octadecyl)Silane

Reinheit: 98%

Molekulargewicht: 347.09g/mol

Ref: 54-OR1029958

n-OCTADECYLDIMETHYLCHLOROSILANE, 97%

CAS: 18643-08-8

Alkyl Silane - Conventional Surface Bonding
Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.
n-Octadecyldimethylchlorosilane; Dimethyl-n-octadecylchlorosilane; Chlorodimethyloctadecylsilane; Chlorodimethylsilyl-n-octadecane
Contains <5% C18 isomersEmployed in bonded HPLC reverse phases

Formel: C₂₀H₄₃ClSi

Reinheit: 97% including isomers

Farbe und Form: Off-White Solid

Molekulargewicht: 347.1

Ref: 3H-SIO6615.1

n-OCTADECYLDIMETHYLCHLOROSILANE

CAS: 18643-08-8

Alkyl Silane - Conventional Surface Bonding
Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.
n-Octadecyldimethylchlorosilane; Dimethyl-n-octadecylchlorosilane; Chlorodimethyloctadecylsilane; Chlorodimethylsilyl-n-octadecane
Contains 5-10% C18 isomersEmployed in bonded HPLC reverse phases

Formel: C₂₀H₄₃ClSi

Reinheit: 97% including isomers

Farbe und Form: Off-White Solid

Molekulargewicht: 347.1

Ref: 3H-SIO6615.0

n-Octadecyldimethylchlorosilane

CAS: 18643-08-8

Formel: C₂₀H₄₃ClSi

Reinheit: 95%

Farbe und Form: Solid

Molekulargewicht: 347.1

Ref: 10-S12175

n-OCTADECYLDIMETHYLCHLOROSILANE, 70% in toluene

CAS: 18643-08-8

Alkyl Silane - Conventional Surface Bonding
Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.
n-Octadecyldimethylchlorosilane; Dimethyl-n-octadecylchlorosilane; Chlorodimethyloctadecylsilane; Chlorodimethylsilyl-n-octadecane
Contains 5-10% C18 isomers70% in toluene

Formel: C₂₀H₄₃ClSi

Farbe und Form: Straw Amber Liquid

Molekulargewicht: 347.1

Ref: 3H-SIO6615.2