Fluorene-based acrylate
promises the properties that you have not seen in conventional acrylate.
Feature
High refractive index
High heat resistance
Low shrinkage by curing
Application

Physical property data
Acrylate monomer | Mixture | |||||
---|---|---|---|---|---|---|
Product name |
OGSOL EA-0200 |
OGSOL EA-0250P (the 50% PGMEA dilution OGSOL EA-0200) |
OGSOL EA-0300 |
OGSOL GA-5060P |
OGSOL EA-F5710 |
|
Feature | High refractive index High heat resistance |
High refractive index High heat resistance |
High flexibility High heat resistance |
High refractive index High hardness |
High refractive index Solvent-free |
|
The number of functional groups | Bifunctional acrylate | Bifunctional acrylate | Bifunctional acrylate | Bifunctional epoxy acrylate | Formulation (EA-0200/m-phenoxybenzyl acrylate) |
|
Before Curing |
Refractive index (589nm:D line, 25℃) |
1.616 | 1.504 | 1.555 | 1.620 | 1.601 |
Solvent presence | 5% toluene | 50% PGMEA | Solventless | 40% PGMEA | Solventless | |
Viscosity (25℃) [mPa・s] |
>100,000 | <50 | 6,000-8,000 | 500-2,500 | 8,000-10,000 | |
After Curing |
Refractive index (589nm:D line, 25℃) |
1.626 | 1.626 | 1.576 | 1.650 | 1.623 |
Tg(DSC)[℃] | 211 | 211 | 17 | 228 | 127 | |
Volume shrinkage[%] | 0.5 | 0.5 | 0.7 | No data | 6.3 | |
Water absorption[%] | 0.08 | 0.08 | 2.6 | No data | 0.06 |
Total light transmittance

High transmittance in the visible light range makes the light sorce be effective.
Thermal stability evaluation

Product name | 5% weight reduction temperature[℃] |
---|---|
EA-0200 | 416 |
EA-0300 | 382 |
GA-5060P | 386 |
Bis-A diacrylate | 375 |
Test conditon: TG-DTA(Measurement of weight reduction with heat)
Photopolymerization intiator: 3phr Irgacure 184
Integrated UV light intensity: 500mJ/cm2
Thickness: 2mm
Low shrinkage by curing
An improved example of cure shrinkage by blending a multifunctional acylate

Fluorene aclyate has a feature such as low cure shrinkage by UV curing because of bulky 3D-sturucture.
∗ Values above are for references only, not guaranteed for the products.