3-(Dichloromethylsilyl)propyl 2-Propenoate: FAQs & Guide
3-(Dichloromethylsilyl)propyl 2-Propenoate: FAQs & Guide
3-(Dichloromethylsilyl)propyl 2-propenoate is a bifunctional organosilane reagent featuring both a reactive dichloromethylsilyl group and a polymerizable acrylate moiety, making it a versatile building block for covalent surface modification and graft polymerization applications.
- Product Name
- 3-(Dichloromethylsilyl)propyl 2-propenoate
- SKU
- D1044071B
- Functional Groups
- Dichloromethylsilyl (Si–Cl) and acrylate (C=C–C=O)
- Primary Application
- Surface functionalization, silane coupling, and graft polymerization
- Reactivity Hazard
- Hydrolyzes rapidly in moisture to release HCl; handle under anhydrous conditions
- Storage Recommendation
- Store in a cool, dry place away from moisture; use inert atmosphere
What Is 3-(Dichloromethylsilyl)propyl 2-Propenoate?
3-(Dichloromethylsilyl)propyl 2-propenoate (SKU D1044071B) is a bifunctional organosilane compound that combines two chemically distinct and reactive moieties within a single molecule. The dichloromethylsilyl head group (–SiCH3Cl2) readily undergoes hydrolysis and condensation reactions with hydroxylated surfaces such as glass, silica, and metal oxides, forming stable Si–O–surface bonds. The terminal acrylate group (–OC(O)CH=CH2) participates in free-radical or controlled radical polymerization reactions, enabling covalent incorporation into polymer networks.
This dual functionality makes the compound particularly valuable as a surface primer, a crosslinker between inorganic substrates and organic polymer matrices, and as a monomer for the synthesis of surface-anchored polymer brushes.
How Should This Compound Be Handled and Stored Safely?
Due to the presence of two Si–Cl bonds, 3-(dichloromethylsilyl)propyl 2-propenoate is highly moisture-sensitive. Contact with atmospheric moisture or water causes rapid hydrolysis, generating hydrochloric acid (HCl) as a byproduct. This presents both a material-integrity risk (premature self-condensation) and a safety hazard (corrosive fumes).
Handling recommendations:
- Perform all transfers and reactions under an inert atmosphere (nitrogen or argon) using standard Schlenk or glovebox techniques.
- Use anhydrous solvents when preparing solutions.
- Wear appropriate personal protective equipment (PPE): chemical-resistant gloves, safety goggles, and a laboratory coat. Work in a well-ventilated fume hood.
- Avoid contact with skin, eyes, and mucous membranes. In case of skin contact, rinse immediately with large amounts of water.
Storage recommendations:
- Store in a tightly sealed container in a cool, dry location, away from moisture and incompatible materials (bases, alcohols, water).
- An inert gas blanket (nitrogen or argon) over the liquid is recommended to extend shelf life.
- Consult the Safety Data Sheet (SDS) for full hazard information and regulatory guidance.
What Are the Key Applications in Research?
3-(Dichloromethylsilyl)propyl 2-propenoate serves as a versatile reagent across several research domains:
- Surface functionalization: The silyl chloride groups anchor the molecule to hydroxylated substrates (glass slides, silicon wafers, silica nanoparticles), introducing pendant acrylate groups that serve as reactive handles for subsequent chemistry.
- Graft polymerization: Surface-bound acrylate groups initiate or participate in radical polymerization, enabling the growth of well-defined polymer brushes directly from the substrate surface. This approach is used to tune wettability, biocompatibility, and antifouling properties.
- Composite material fabrication: The compound acts as a coupling agent at the inorganic–organic interface in fiber-reinforced composites, improving adhesion between glass or mineral fillers and acrylic or other resin matrices.
- Hybrid material synthesis: It can be incorporated into sol-gel processes to produce silica-acrylate hybrid networks with tunable mechanical and optical properties.
Researchers in materials science, polymer chemistry, biomedical engineering, and nanotechnology will find this reagent particularly useful for engineering surfaces at the molecular level.
Ordering, Specifications, and Quality Information
3-(Dichloromethylsilyl)propyl 2-propenoate is available from Aladdin Scientific under SKU D1044071B. When placing an order or evaluating this product, researchers and procurement staff should consider the following:
- Purity and specification: Please refer to the current product page or request the Certificate of Analysis (CoA) for the specific lot you are purchasing. Purity data, analytical methods, and lot-specific results are documented in the CoA.
- Available pack sizes: Contact Aladdin Scientific customer service or visit the product listing for current pack size and pricing options.
- Lead time and shipping: This reagent requires appropriate packaging to prevent moisture ingress during transit. Review shipping conditions on the product page or contact our logistics team.
- Regulatory and documentation: An SDS is available on the product page. For export-controlled or restricted substances inquiries, contact our compliance team.
For technical inquiries, custom quantities, or bulk pricing, please contact Aladdin Scientific customer support directly.
Frequently asked questions
What makes 3-(Dichloromethylsilyl)propyl 2-propenoate different from trialkoxysilane acrylate coupling agents?
Unlike trialkoxysilane acrylates, this compound bears two Si–Cl bonds rather than Si–OR bonds. Chlorosilanes are significantly more reactive toward hydroxylated surfaces and undergo faster hydrolysis and condensation, which can be advantageous for rapid surface functionalization but requires strict anhydrous handling conditions to prevent premature reaction. Additionally, the methyl substituent on silicon limits crosslinking to at most two surface Si–O bonds per molecule, compared to up to three for trialkoxysilanes.
Can this reagent be used with free-radical photoinitiators for UV-curing applications?
Yes. Once the silyl group has been anchored to a substrate or incorporated into a formulation, the pendant acrylate group is available for UV-induced free-radical polymerization using standard photoinitiators. This makes the compound useful for photocurable coatings and adhesive systems that require covalent bonding to mineral or glass substrates. Care must be taken to complete the silylation step under anhydrous conditions before introducing any protic components or the photoinitiator solution.
What solvents are compatible with 3-(Dichloromethylsilyl)propyl 2-propenoate for preparing stock solutions?
Anhydrous aprotic solvents are required to prevent premature hydrolysis of the Si–Cl bonds. Suitable options include dry toluene, dry hexane, dry dichloromethane, and dry tetrahydrofuran (THF). Protic solvents (water, alcohols) and basic solvents must be avoided, as they react rapidly with the chlorosilane functionality. All solvents should be freshly dried or purchased as anhydrous grade and handled under inert atmosphere.
Is an inhibitor present in the acrylate group, and does it need to be removed before use?
Acrylate-containing reagents commonly contain a radical inhibitor (such as hydroquinone monomethyl ether, MEHQ) to prevent premature polymerization during storage. Whether an inhibitor is present and at what level should be confirmed by reviewing the Certificate of Analysis (CoA) for your specific lot. If inhibitor removal is required for your application, standard methods such as passing through inhibitor-removal columns under inert atmosphere can be employed, though the highly moisture-sensitive nature of the Si–Cl groups demands extra care during this process.
How do I confirm successful surface modification using this silane?
Successful surface functionalization can be confirmed by several analytical techniques. Contact angle goniometry can indicate a change in surface wettability after modification. X-ray photoelectron spectroscopy (XPS) can detect Si, C, and Cl signals and confirm covalent bonding to the substrate. Attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) can identify characteristic acrylate C=C and C=O stretching bands on the modified surface. Ellipsometry can quantify the film thickness of the deposited silane layer.
References
- Plueddemann, E. P. Silane Coupling Agents, 2nd ed.; Plenum Press: New York, 1991. (General reference on chlorosilane and alkoxysilane surface chemistry.)
- Mittal, K. L. (Ed.) Silanes and Other Coupling Agents; VSP: Utrecht, 1992. (Reference on coupling agent applications in composites and surface modification.)
- Aladdin Scientific Product Page, SKU D1044071B, 3-(Dichloromethylsilyl)propyl 2-propenoate. https://www.aladdin-e.com (accessed 2025).
Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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