Product Series
Request A Quote
Get Your Customized Equipment Quote in 24 Hours – Global Solutions, Local Support.
Product Details
- 产品描述
-
Silane USi-7311 – 3-Chloropropylmethyldimethoxysilane
Methyl-Modified Chloroalkyl Silane for Specialty Coupling & Silicone Synthesis
CAS No.: 18171-19-2
EINECS No.: 242-056-0
Molecular Weight: 182.72 g/mol
Chemical Name:
3-Chloropropylmethyldimethoxysilane
Synonyms:
Methyldimethoxy(3-chloropropyl)silane, (3-Chloropropyl)dimethoxymethylsilaneSilane USi-7311 is a uniquely structured chloroalkyl-functional silane featuring one methyl group and two methoxy groups on silicon, combined with a reactive 3-chloropropyl chain. This molecular design reduces crosslinking density compared to trialkoxysilanes, offering controlled reactivity—ideal as an intermediate for specialty coupling agents, modified silicone oils, and performance additives in polyurethane elastomers, PVC, and textile softeners.
🧪 Product Description
Chemical Structure:
Cl–(CH₂)₃–Si(CH₃)(OCH₃)₂USi-7311 stands out due to its asymmetric, partially substituted silicon center:
- The chloropropyl group provides polarity and reactivity for bonding with organic polymers (e.g., PU, PVC) or further chemical modification
- The methyl group enhances hydrophobicity and compatibility with non-polar matrices, while reducing hydrolysis/condensation rate vs. trialkoxy analogs
- The two methoxy groups allow controlled grafting onto filler surfaces or polymer backbones without excessive gelation
- Lower molecular weight and viscosity improve processability in synthesis and formulation
✅ Key Advantage: Offers a balanced profile of reactivity, stability, and compatibility—bridging the gap between highly reactive trialkoxysilanes and inert alkyl silanes.
📊 Typical Technical Data
The following values are typical and not intended for specification. Please confirm with our technical team before finalizing product requirements.
Parameter Specification Appearance Colorless transparent liquid Specific Gravity (20°C) 1.014 – 1.024 g/cm³ Refractive Index (nD25) 1.4200 – 1.4300 Purity (GC, %) ≥ 98.0%
🏭 Key Applications
🔹 Intermediate for Specialty Chemicals
- Used to synthesize tailored coupling agents and functional silicone fluids with precise architecture
- Enables introduction of chlorine functionality into silicone backbones for further quaternization or crosslinking
🔹 Polyurethane (PU) Elastomer Modification
- Incorporation of the polar chloropropyl group enhances intermolecular forces, improving:
- Tensile & tear strength
- Elastic recovery and elongation at break
- Enables development of low rolling resistance, high elasticity elastomers for automotive/seals
🔹 PVC Plasticizer Stabilization
- Acts as a plasticizer migration inhibitor in flexible PVC formulations
- Helps retain plasticizer within the matrix, maintaining flexibility and preventing surface tackiness or “bleeding”
🔹 Textile & Foam Functionalization
- Derivatives used as fabric softeners that impart elasticity and smoothness
- Serves as an absorbent modifier in polyurethane foam to enhance climate adaptability (e.g., humidity buffering)
🔹 Electrophotography & Imaging
- Used in the production of electric toners for xerographic printing and image display technologies
📦 Packaging
Available in industrial-grade containers:
- 25 L pail
- 200 L drum
- 1000 L IBC tote
All packaging ensures product integrity during storage and transport.
⚠️ Safety & Storage
- Store in original unopened containers at or below 35°C
- Keep away from heat and open flame
- Shelf Life: 12 months from production date under recommended conditions
- Use in well-ventilated areas; wear appropriate PPE (gloves, goggles)
- Consult the latest Safety Data Sheet (SDS) at www.usi-chemical.com or upon request
📞 Contact Us
Nanjing Union Silicon Chemical Co., Ltd.
Your Innovation Partner for Asymmetric Functional Silanes- Headquarters:
Room 2002, Overseas Chinese Plaza, No.1 Daqiao North Road, Nanjing 210031, Jiangsu, P.R. China - Factory Address:
Dongcheng Guanli District, Gaizhou 115200, Liaoning, P.R. China - Website: www.usi-chemical.com
- Email: inquiry@usichemical.com
Keywords:
Previous Page
Next Page
Related products
Request A Quote
Get Your Customized Equipment Quote in 24 Hours – Global Solutions, Local Support.
Phone/WhatsApp:
Email:
HUATAO GROUP
Leave Message
If you have any queries about us or our product(s), feel free to drop us a message.
