Poly(methyl methacrylate/methacrylic acid) [80:20] is a copolymer that blends the optical clarity and strength of PMMA with the hydrophilic and adhesive properties of methacrylic acid. The carboxyl groups from methacrylic acid can improve adhesion, water absorption behavior, and pH responsiveness, making this copolymer useful for biomedical materials research, coatings, adhesives, and pH-responsive polymer systems.
This 80:20 PMMA/methacrylic acid copolymer is suitable for laboratory work involving specialty coatings, adhesive formulations, hydrogel studies, controlled-release materials research, and polymer systems where acrylic strength and methacrylic acid functionality are both required.
Key Properties
- PMMA/methacrylic acid copolymer with 80:20 composition
- Combines acrylic thermoplastic strength with carboxyl functionality
- Useful for adhesion, water absorption behavior, and pH-responsive polymer research
- Product Number: 08221
- CAS Number: 25086-15-1
- Linear formula: [-CH2C(CH3)(CO2CH3)-]x[-CH2C(CH3)(CO2H)-]y
- Appearance: White, granular, solid
- Soluble in: ethyl cellosolve acetate and 9:1 IPA-water
- Storage: Room temperature
Applications
Biomedical & Dental Materials Research
Used in research involving PMMA-based materials, bone cement models, bioadhesive studies, and dental material formulations. Suitability for any medical, clinical, dental, implantable, or regulated use must be independently validated.
Coatings & Adhesives
May be used in specialty coating and adhesive studies where adhesion, durability, water interaction, and acrylic polymer performance are important.
Controlled-Release & Hydrogel Studies
Useful as a pH-responsive material in controlled-release formulation research and hydrogel-related polymer studies.
pH-Responsive Polymer Systems
The methacrylic acid component provides carboxyl functionality that can influence ionization, swelling, adhesion, and polymer response under different pH conditions.
Acrylic Polymer Formulation
Suitable for formulation work involving PMMA-based copolymers, hydrophilic acrylic systems, and specialty materials requiring both rigidity and functional acid groups.
Solubility & Compatibility
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Soluble in: ethyl cellosolve acetate and 9:1 IPA-water
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Polymer type: Methyl methacrylate/methacrylic acid copolymer
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Functional character: PMMA backbone with methacrylic acid-derived carboxyl functionality
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Formulation use: Applicable to coatings, adhesives, hydrogels, and pH-responsive polymer research
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Compatibility: Performance depends on solvent system, pH, concentration, additives, substrate, and processing conditions
Final material behavior should be evaluated under the intended formulation, processing, and application conditions.
Preparation Tips
- Confirm compatibility with the intended solvent system, resin, substrate, or polymer blend before scale-up.
- Allow sufficient mixing time for uniform dissolution or dispersion in compatible solvent systems.
- Evaluate pH, concentration, and solvent composition, as these can influence solubility, swelling, adhesion, and viscosity behavior.
- For coatings or adhesives, test film formation, adhesion, durability, and water interaction under target conditions.
- Document solvent, concentration, pH, mixing order, temperature, and drying conditions for reproducible results.
Handling & Storage
- Exercise normal care when handling this material.
- Store at room temperature.
- Keep container tightly closed when not in use.
- Protect from contamination and unnecessary environmental exposure.
- Use standard laboratory handling practices.
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Frequently Asked Questions
1. What is Poly(methyl methacrylate/methacrylic acid) [80:20] used for?
It is used in research involving coatings, adhesives, hydrogels, pH-responsive materials, controlled-release systems, and PMMA-based biomedical or dental material studies.
2. What does the 80:20 ratio mean?
The 80:20 ratio indicates the copolymer composition based on methyl methacrylate and methacrylic acid units.
3. Why is methacrylic acid included in this copolymer?
Methacrylic acid introduces carboxyl functionality that can influence adhesion, water absorption behavior, ionization, and pH responsiveness.
4. What solvents is this product soluble in?
This product is listed as soluble in ethyl cellosolve acetate and 9:1 IPA-water.
5. Is this product suitable for medical or dental use?
This product is useful for biomedical and dental materials research. Suitability for any medical, clinical, diagnostic, dental, implantable, or regulated use must be independently validated for the intended application.
6. How should this product be stored?
Store at room temperature, keep the container tightly closed when not in use, and follow standard laboratory handling practices.
Safety & Documentation
This product is listed as harmless under normal precautions. Exercise normal care when handling this material and refer to the Safety Data Sheet (SDS), product specification, and Certificate of Analysis for safety, handling, and lot-specific guidance.
