Isodecyl acrylate (IDA) is a hydrophobic, monofunctional alkyl acrylate monomer used to prepare flexible acrylic polymers and copolymers. Its branched C10 alkyl group contributes hydrophobic character, while its −55°C homopolymer glass transition temperature makes it useful when low-temperature flexibility and a softer polymer phase are desired.
Product 03008 has a chemical purity of ≥90% and contains approximately 50 ppm MEHQ inhibitor. It is a mobile, slightly colored liquid supplied in a 100 g package.
Isodecyl acrylate can be evaluated as a comonomer in pressure-sensitive adhesives, coatings, sealants, and other flexible acrylic formulations. Polymer properties such as tack, adhesion, water resistance, glass transition temperature, and mechanical performance depend on monomer composition and polymerization conditions.
Synonyms: Acrylic acid isodecyl ester; iso-decyl acrylate; IDA
Key Properties
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Product number: 03008
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CAS number: 1330-61-6
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Chemical purity: ≥90%
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Linear formula: H2C=CHCO2C10H21
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Molecular formula: C13H24O2
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Molecular weight: 212.3 g/mol
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Appearance: Mobile, slightly colored liquid
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Boiling point: 121°C at 10 mm Hg
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Homopolymer Tg: −55°C
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Refractive index: 1.44
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Inhibitor: Approximately 50 ppm MEHQ
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Package size: 100 g
Applications
Flexible Acrylic Copolymers
Use isodecyl acrylate as a low-Tg comonomer when developing softer acrylic polymers with low-temperature flexibility. Final glass transition temperature and mechanical performance depend on comonomer ratios, molecular weight, conversion, and crosslink density.
Pressure-Sensitive Adhesive Research
Evaluate isodecyl acrylate in experimental pressure-sensitive adhesive formulations where tack, flexibility, hydrophobicity, and adhesion are important. Balance the soft-monomer content with higher-Tg or functional comonomers to achieve the required adhesive and cohesive properties.
Coatings and Sealants
Isodecyl acrylate can support flexible, hydrophobic acrylic formulations for coating and sealant research. Test water resistance, substrate adhesion, durability, and environmental performance in the complete formulation.
Hydrophobic and Hydrocarbon-Compatible Polymers
The branched C10 alkyl group can contribute hydrophobic character and compatibility with nonpolar media. Finished-polymer solubility and compatibility depend on copolymer composition, molecular weight, concentration, and temperature.
Polymerization and Formulation Considerations
- Select a compatible free-radical initiator, comonomer system, and reaction medium for the intended polymer architecture.
- Account for the approximately 50 ppm MEHQ inhibitor when establishing initiation conditions and reaction time.
- Adjust the isodecyl acrylate ratio according to the required balance of softness, tack, cohesion, hydrophobicity, and thermal performance.
- Confirm compatibility with other monomers, additives, solvents, and substrates before scaling the formulation.
- Evaluate residual monomer, conversion, molecular weight, glass transition temperature, and application-specific performance in the finished polymer.
Application Tips
- Begin with small-scale formulations to establish an appropriate comonomer ratio.
- Mix thoroughly to produce a uniform monomer feed before polymerization.
- Monitor reaction temperature and conversion throughout the polymerization process.
- Measure final Tg rather than relying only on the homopolymer value.
- For adhesive research, evaluate tack, peel adhesion, shear resistance, and cohesive strength together.
- For coatings and sealants, test water uptake, substrate adhesion, flexibility, and durability under the intended service conditions.
Handling & Storage
- Store at 4°C in a cool, well-ventilated location with the container tightly closed.
- Keep the product secured and away from incompatible materials.
- Use with adequate local exhaust ventilation or in a chemical fume hood.
- Avoid breathing vapor or mist.
- Wear suitable protective gloves, protective clothing, and eye or face protection.
- Wash thoroughly after handling.
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Frequently Asked Questions
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What is isodecyl acrylate?
Isodecyl acrylate is a hydrophobic, monofunctional alkyl acrylate monomer with a branched C10 alkyl group. It is used as a comonomer in flexible acrylic polymers and copolymers.
What are the key properties of Polysciences isodecyl acrylate?
Product 03008 has ≥90% chemical purity, CAS number 1330-61-6, a molecular weight of 212.3 g/mol, a −55°C homopolymer Tg, and approximately 50 ppm MEHQ inhibitor.
What is isodecyl acrylate used for?
It can be evaluated in flexible acrylic copolymers, pressure-sensitive adhesive research, coatings, sealants, and hydrophobic or hydrocarbon-compatible polymer formulations.
Is isodecyl acrylate the same as decyl acrylate?
Isodecyl acrylate contains a branched C10 alkyl group. A linear n-decyl acrylate has a different alkyl structure, so the identity, CAS number, grade, and technical specifications should be confirmed when comparing materials.
Why does isodecyl acrylate contain MEHQ?
MEHQ helps inhibit premature polymerization during storage and handling. Polymerization conditions should account for the approximately 50 ppm inhibitor concentration in this product.
Safety & Documentation
Warning: Harmful if inhaled. Causes skin irritation and serious eye irritation. Use adequate ventilation and appropriate personal protective equipment. Review the SDS before handling.
