Dimethoxy-bis(2-methylpropyl)silane
- CAS No.17980-32-4
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-purity organosilicon electron donor designed for propylene polymerization catalysts, ensuring superior stereoregularity and process efficiency.
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Product Overview
Dimethoxy-bis(2-methylpropyl)silane, frequently recognized in the industry as Diisobutyldimethoxysilane or DIBDMS, represents a critical component in modern polyolefin catalysis systems. As a specialized organosilicon compound, this material functions primarily as an external electron donor within Ziegler-Natta catalyst frameworks. Our manufacturing process ensures exceptional chemical stability and consistency, making it an indispensable asset for producers of isotactic polypropylene. The precise molecular structure allows for optimal interaction with transition metal centers, thereby enhancing the stereoregularity of the resulting polymer chains.
We understand that in large-scale polymerization processes, even minor variations in donor purity can significantly impact catalyst activity and polymer morphology. Therefore, our facility adheres to rigorous quality control protocols to deliver a product that meets the demanding specifications of global petrochemical enterprises. This silane derivative is engineered to provide reliable performance across various reactor configurations, supporting both continuous and batch polymerization operations.
Technical Specifications
The following table outlines the key physical and chemical properties verified through our internal quality assurance laboratories. Each batch is accompanied by a Certificate of Analysis to guarantee compliance with stated parameters.
| Parameter | Specification |
|---|---|
| Appearance | Colorless transparent liquid |
| Purity | ≥99.0% |
| Moisture Content | <100 Ppm |
| Density | 0.87 g/cm³ |
| Boiling Point | 120 °C |
| Refractive Index | 1.4235-1.4255 |
| Molecular Formula | C10H24O2Si |
| Molecular Weight | 204.38 g/mol |
Industrial Applications
The primary application of Dimethoxy-bis(2-methylpropyl)silane lies in the production of polypropylene resins. When utilized as an external donor, it plays a pivotal role in controlling the tacticity of the polymer, which directly influences mechanical properties such as stiffness, clarity, and impact resistance. This makes it particularly valuable for manufacturing high-performance packaging materials, automotive components, and consumer goods.
- Enhances catalyst stereoselectivity for isotactic polypropylene production.
- Improves hydrogen response during polymerization reactions.
- Reduces the formation of atactic polymer byproducts, increasing overall yield.
- Compatible with a wide range of third-generation and fourth-generation catalyst systems.
Quality Assurance and Safety
Our commitment to excellence extends beyond mere chemical synthesis. We implement comprehensive safety data management and handling guidelines to ensure secure transportation and usage. The product is synthesized under controlled conditions to minimize impurities that could poison sensitive catalyst sites. Clients receive full traceability documentation, including batch records and stability data, to support their regulatory compliance needs.
Storage and Handling
To maintain optimal quality, Dimethoxy-bis(2-methylpropyl)silane should be stored in a cool, dry, and well-ventilated environment. It is imperative to keep containers tightly sealed and store them separately from strong acids, alkalis, and oxidizing agents to prevent unintended chemical reactions. The standard packaging configuration is 180kg per drum, designed to protect the integrity of the liquid during international shipping. Under recommended storage conditions, the shelf life extends up to one year from the date of manufacture. We advise all handling personnel to consult the Safety Data Sheet and wear appropriate personal protective equipment during transfer operations.
