RM82 Reactive Mesogen
CAS 125248-71-7
RM82 (also written RM 82 or RM-82) is a C6-spacer mesogenic diacrylate: a difunctional reactive mesogen and liquid crystal monomer. Palica supplies RM82 for liquid crystal elastomer (LCE) formulations, 4D-printed actuators and liquid-crystalline vitrimer research.
≥96.0% purity by HPLC · White powder

Request pricing & availability Compare RM257 and RM82
Specifications
- Purity (HPLC, area%): ≥96.0%
- Loss on drying: ≤0.50%
- Appearance: White powder
Product identity
- CAS number: 125248-71-7
- EC / List number: 419-310-6
- Molecular formula: C39H44O10
- Molecular weight: 672.8 g/mol
- Functionality: Diacrylate
Chemical name: 2-Methyl-1,4-phenylene bis(4-((6-(acryloyloxy)hexyl)oxy)benzoate)
Literature name: 1,4-Bis-[4-(6-acryloyloxyhexyloxy)benzoyloxy]-2-methylbenzene
Project supply
Flexible packaging is available for laboratory and pilot quantities. Send the required quantity, delivery country, packaging preference and document needs; we will confirm price, availability, lead time and available batch documentation.
Selection guide & typical evaluation areas
Use the structural comparison below to shortlist a product, then validate it in the complete formulation.
RM257 / RM82
| Attribute | RM257 | RM82 |
| Spacer | C3 | C6 |
| Functionality | Difunctional diacrylate | Difunctional diacrylate |
| Common evaluation areas | PNLCs, aligned LC networks, UV-curable formulations | LCEs, 4D-printed actuators, liquid-crystalline vitrimers |
These products are not drop-in substitutes.
RM82 is commonly evaluated as a difunctional crosslinker in research formulations where mesogenic order and network response must be tuned together.
- LCE monomer and crosslinker: Thiol-acrylate networks, direct-write inks and responsive liquid crystal elastomer actuators.
- 4D printing and soft robotics: Research into programmed shape change under external stimuli.
- Liquid-crystalline vitrimers: Crosslinked mesogenic networks studied for dynamic-bond and reprocessing behaviour.
Formulation fit depends on the co-monomers, alignment route, initiator system and cure conditions. Validate phase behaviour, printability and actuation in the complete formulation.
For practical formulation considerations, see alignment, oxygen inhibition and cure-window control.
Patent notice: Synthesis or use may be covered by third-party patent rights in some jurisdictions or applications. Supply does not include a patent licence; customers should assess freedom to operate for their intended use.
Chemical identity reference: PubChem.
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