SINOMER® BPEFDA (Bisphenol Fluorene Ethoxylate Diacrylate, CAS 161182-73-6) is a difunctional acrylate monomer containing a rigid fluorene backbone and flexible ethoxy chains. It offers exceptionally high refractive index (>1.600), high hardness, and excellent chemical resistance. The monomer is supplied as a blend with OPPEA (≤50%) to optimize handling and reactivity. SINOMER® BPEFDA is specifically designed for UV‑curable systems where high clarity and high refractive index are required, such as optical films, advanced coatings, inks, and adhesives.
SINOMER® BPEFDA
(Ethoxylated Bisphenol Fluorene Diacrylate – High Refractive Index Monomer for Optical Applications)
Chemical Name: 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene;
Ethoxylated Bisphenol Fluorene Diacrylate
CAS No.: 161182-73-6
MF: C35H30O6
MW：546.61
Molecular structure:
![9,9-双[4-(2-丙烯酰氧基乙氧基)苯基]芴 结构式](https://www.chemicalbook.com/CAS/GIF/161182-73-6.gif)
SINOMER® BPEFDA (Bisphenol Fluorene Ethoxylate Diacrylate, CAS 161182-73-6) is a difunctional acrylate monomer containing a rigid fluorene backbone and flexible ethoxy chains. It offers exceptionally high refractive index (>1.600), high hardness, and excellent chemical resistance. The monomer is supplied as a blend with OPPEA (≤50%) to optimize handling and reactivity. SINOMER® BPEFDA is specifically designed for UV‑curable systems where high clarity and high refractive index are required, such as optical films, advanced coatings, inks, and adhesives.
| 检验项目 (Item) | 指标要求 (Specification) |
| 外观 (Appearance) | 无色至浅黄色透明液体 |
| 色度 (APHA) | ≤ 50 |
| BPEFDA content (%) | ≥ 50 |
| OPPEA content (%) | ≤ 50 |
| Refractive index (nD²⁵) | > 1.600 |
| Viscosity (cps, 25°C) | 16,000 ± 500 |
High refractive index (>1.600) – ideal for optical applications
Excellent hardness – provides scratch resistance and durability
Good chemical resistance – withstands solvents and chemicals
UV‑curable – fast polymerization under UV/EB radiation
Compatible with common monomers and oligomers – versatile formulation
Optical films – brightness enhancement films, antireflective coatings, and light guide plates
High‑performance coatings – hard coats for plastics, metals, and glass
UV adhesives – for optical bonding and electronic assembly
UV inks – offset, screen, and inkjet inks requiring high gloss and durability
25kg,200kgs/drum.
存放在干燥、阴凉、通风良好的库房内。
避免受光照和高温加热。
运输过程中做好防漏、防雨与防暴晒保护。
