- Home
- Companies
- PolymerExpert
- Products
- ExpertSun - Photochromic Polymers for ...
ExpertSun - Photochromic Polymers for UV-responsive Applications
ExpertSun is a photochromic polymer developed by PolymerExpert that exhibits reversible color change in the presence of ultraviolet (UV) light. Utilizing advanced polymerizable naphthopyran derivatives, these polymers strike a balance between color intensity and the speed of coloring and fading, maintaining structural integrity even within the polymer matrix. This resistance to fatigue allows the polymers to be incorporated into a range of applications, from hydrophilic to hydrophobic polymers. In the field of ophthalmics, ExpertSun polymers are utilized in sunglasses and contact lenses, providing protection against UV-induced retinal damage. Notably, PolymerExpert integrates these polymers into intraocular lenses for cataract patients, optimizing visual comfort by adjusting to UV light intensity. The versatility of ExpertSun extends to quality control and safety systems, offering a customizable solution for projects seeking innovative polymer technology.
ExpertSun change color reversibly in the absence and presence of UV. Developed from new polymerizable naphthopyran derivatives, they provide a good compromise between color intensity and speed of coloring and fading. Moreover, their structural change in the excited form is not disturbed by the surrounding polymer matrix. Therefore, they exhibit good fatigue resistance.
Naphthopyran derivatives, used at very low proportions, can be co-polymerized with many monomers and provide photochromic properties to both hydrophilic and hydrophobic polymers. The flexibility of this technology opens up interesting prospects for many applications.
Photochromic polymer uses
Numerous applications in the ophthalmic field have been developed around these molecules: darkening of sunglasses lenses, color change of contact lenses… allowing to protect the retina against damage caused by ultraviolet radiation.
PolymerExpert has chosen to integrate these photochromic polymers into intraocular lenses in order to provide visual comfort to cataract patients. With age, the crystalline lens loses its transparency and becomes slightly yellow. During cataract surgery, this lens is replaced by a totally transparent implant. PolymerExpert proposes to limit the disruption of this change through implants that adapt to the intensity of ultraviolet radiation
- Colorless in the shade
- UV colored
- Fast whitening
- Stress resistant
- No toxicity
- Simplified synthesis (cost reduction)
- Optics
- Photochromic intraocular implants
- Building trade
- Beauty products