Question

What are the main characteristics of the PMMA polymer?

Answer 1

1. PMMA is an amorphous thermoplastic with glass-like transparency and high light transmission.
2. It is rigid, moderately brittle, and has good surface hardness.
3. Density ≈ 1.17-1.20 g cm⁻³; it is a good electrical insulator.
4. It shows low moisture uptake and good UV and weather resistance.
5. Glass transition temperature ≈ 100–-20°C; suitable for thermoforming and machining.
6. It has moderate chemical resistance and lower impact strength than polycarbonate.