Poly(tert-butyl methacrylate) (PtBMA) is a hydrophobic, high-Tg methacrylate polymer used in coatings, lithography and photoresist research, polymer synthesis, and specialty materials development. The bulky tert-butyl side group provides steric hindrance, influencing chain interactions, thermal behavior, and compatibility in organic polymer systems.
This PtBMA product is useful for research workflows involving heat- and solvent-resistant coatings, sacrificial polymer systems, and hydrolyzable polymer chemistry. Poly(tert-butyl methacrylate) can decompose thermally to poly(methacrylic acid), making it valuable for studies requiring a protected methacrylate polymer precursor.
Key Properties
- Hydrophobic, high-Tg methacrylate polymer
- Useful in coatings, photoresist research, polymer synthesis, and materials development
- CAS Number: 25189-00-8
- Linear formula: [-CH2C(CH3)[CO2C(CH3)3]-]n
- Synonym: PtBMA
- Glass transition temperature (Tg): 107°C
- Appearance: White to off-white solid
- Thermally decomposes to poly(methacrylic acid)
Applications
Protective Coatings
Used in research and formulation studies involving heat- and solvent-resistant coatings, protective films, and specialty surface materials.
Lithography & Photoresists
Functions as a sacrificial polymer in lithography and photoresist research, including semiconductor-related materials development workflows.
Polymer Synthesis
Used as a protected precursor to poly(methacrylic acid) in hydrolyzable polymer systems and methacrylate polymer chemistry.
Materials Research
Suitable for laboratory studies involving high-Tg methacrylate polymers, thermal decomposition behavior, polymer compatibility, and specialty resin development.
Compatibility & Formulation Considerations
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Polymer type: Hydrophobic tert-butyl methacrylate-based polymer
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Thermal behavior: High glass transition temperature with thermal conversion potential to poly(methacrylic acid)
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Formulation use: Applicable to research involving coatings, photoresists, sacrificial layers, and protected polymer systems
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Compatibility: Performance depends on solvent system, temperature, concentration, additives, substrate, and processing conditions
Final coating, film, or polymer performance should be evaluated under the intended formulation and processing conditions.
Preparation Tips
- Confirm compatibility with the intended solvent, resin system, substrate, or polymer blend before scale-up.
- Use controlled mixing and processing conditions to support uniform incorporation into coatings or polymer formulations.
- Evaluate thermal behavior under target processing or decomposition conditions.
- Document solvent, concentration, temperature, drying, and processing conditions for reproducible results.
Handling & Storage
- Wear gloves and chemical goggles when handling.
- Store at room temperature.
- Keep container tightly closed when not in use.
- Use standard laboratory handling practices.
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Frequently Asked Questions
1. What is Poly(tert-butyl methacrylate) used for?
Poly(tert-butyl methacrylate) is used in research involving protective coatings, lithography and photoresist materials, sacrificial polymer systems, polymer synthesis, and specialty materials development.
2. What is PtBMA?
PtBMA is the common abbreviation for Poly(tert-butyl methacrylate), a hydrophobic methacrylate polymer with tert-butyl ester side groups.
3. What is the glass transition temperature of this product?
The listed glass transition temperature (Tg) for this Poly(tert-butyl methacrylate) product is 107°C.
4. Can Poly(tert-butyl methacrylate) be used as a precursor to poly(methacrylic acid)?
Yes. Poly(tert-butyl methacrylate) is used as a protected precursor in hydrolyzable systems and can decompose thermally to poly(methacrylic acid).
5. How should Poly(tert-butyl methacrylate) be stored?
Store at room temperature and keep the container tightly closed when not in use. Wear gloves and chemical goggles when handling, and refer to the SDS for complete safety guidance.
Safety & Documentation
Wear gloves and chemical goggles when handling this material. Refer to the Safety Data Sheet (SDS) for hazard information, recommended PPE, and safe handling guidance.
