Antioxidants
REACH
1,2-dihydro-2,2,4-trimethyl quinoline, polymer
CAS Number
26780-96-1
EC Number
500-051-3
Abbreviation
TMQ
What is 1,2-dihydro-2,2,4-trimethyl quinoline, polymer?
1,2-Dihydro-2,2,4-trimethyl quinoline, polymer (CAS 26780-96-1), commonly known as TMQ, is a polymerized quinoline antioxidant used to protect rubber compounds from oxidative and thermal degradation.
Where is 1,2-dihydro-2,2,4-trimethyl quinoline, polymer used?
- Rubber systems: extends service life by inhibiting aging from heat, oxygen and flex fatigue
- Tire manufacturing: primary antioxidant protecting carcass compounds, sidewalls and tread formulations during vulcanization and long-term service
- Industrial rubber goods: prevents hardening and cracking at elevated temperatures in belts, hoses and seals
- Automotive rubber components such as engine mounts and vibration dampeners maintain mechanical integrity across wide temperature ranges.
- Plastic and polymer blends: long-term thermal stability
Commercial specifications
- Technical grades meet rubber industry specifications for antioxidant content and softening point
- Bulk and bagged packaging
Other Names (Synonyms)
Poly(1,2-dihydro-2,2,4-trimethylquinoline)|2,2,4-trimethyl-1,2-dihydroquinoline polymer|Rhenodiv bo-7672-1|Poly(2,2,4-trimethyl-1,2-dihydroquinoline)|TMQ
What are the physical properties of 1,2-dihydro-2,2,4-trimethyl quinoline, polymer?
Melting Point 70-90 °C
Boiling Point >315°C
Density 1.08
Appearance Brown to reddish brown Solid
Water Solubility <0.1 g/100 mL at 23 ºC
Vapor Pressure 0Pa at 25℃
Refractive Index 1.4870 (estimate)
Log P 3.9 at 25℃
Which trade and regulatory codes apply to 1,2-dihydro-2,2,4-trimethyl quinoline, polymer?
WGK (Germany) 2