Copolymerization with MMA improves heat resistance and maintains transparency!
N-Cyclohexylmaleimide
IMILEX-C (N-cyclohexylmaleimide) is a maleimide that Nippon Shokubai first commercialized in 1985 using its own manufacturing technology. It is a monomer that can impart heat resistance to various resins, and is widely sold both in Japan and overseas. For example, it is copolymerized with methyl methacrylate (MMA) and used in various materials such as optical materials and automotive parts.
The heat resistance of the polymer can be improved by copolymerizing MMA with a heat resistance improving monomer (IMILEX-C).
| Formulation example 1 | Formulation example 2 | |
|---|---|---|
| Raw material composition | MMA 100% | MMA 80% IMILEX-C 20% |
| Manufacturing method | The monomer composition contains lauryl peroxide as a polymerization initiator. Dissolve 0.4 parts and mold by cast polymerization | |
| Glass transition temperature (Tg, °C) | 114 | 137 |
| characteristics | Transparent and low color | Transparent and low color (maintains transparency) |
The heat resistance improving monomer (IMILEX-C) is a white flake-like material that can maintain the transparency characteristic of PMMA even when added during polymerization with MMA.
| item | unit | Representative value |
|---|---|---|
| exterior | – | White flakes |
| Melting point | ℃ | 87～90 |
| boiling point | ℃ | 128 (1.33kPa) |
The heat resistance improving monomer (IMILEX-C) has a structure that combines a hydrophobic cyclohexyl group and a polar imide group, making it soluble in various solvents.
| solvent | Solubility (g) | solvent | Solubility (g) | solvent | Solubility (g) |
|---|---|---|---|---|---|
| THF | 84 | styrene | 55 | Xylene | 34 |
| Acrylonitrile | 68 | Ethyl acetate | 48 | Butyl Acetate | 34 |
| acetone | 65 | toluene | 47 | methanol | 16 |
| benzene | 63 | Methyl methacrylate (MMA) | 41 | ethanol | 12 |
| MEK | 55 | DMF | 36 | water | 0.03 |
PMMA heat-resistance monomer
Long-standing product enhanced heat resistance, transparency, and scratch resistance
Find our more
Heat-resistant automotive resins
Improved heat resistance while maintaining moldability and transparency
Find our more
