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Raw materials for Silicone Hydrogel Contact lenses and
Monomers for foldable intraocular lenses (IOL)

Pharnorcia®Monocarbinol(-OH)-PDMS-(A701) (CAS: 191920-47-5) Hydrophilic Technology for Contact Lenses

TIME:2026-05-20 17:00:05

In the development of contact lenses aimed at delivering an optimal wearing experience, Pharnorcia® Monocarbinol (-OH)-PDMS-(A701) (CAS: 191920-47-5) has demonstrated its unique material advantages.Its hydroxyl structure integrates into tears to form a water film, serving as the key factor for achieving a significant leap in the "physiological comfort" of contact lenses.

A701.jpg

Although traditional silicone materials boast high oxygen permeability, their inherent hydrophobicity often leads to lens stiffening and eye irritation. A701 (CAS: 191920-47-5) ingeniously introduces reactive hydroxyl (-OH) groups at the ends of the PDMS chains. Acting like a moisture magnet at the molecular level, this polar group significantly boosts the affinity between the lens and tear fluid. It not only imparts excellent initial wettability but also achieves an extremely low Young's modulus, resulting in a softer lens that conforms perfectly to the curvature of the cornea.

A701分子式.jpg

Meanwhile, the single-functional group design of A701 (CAS: 191920-47-5) effectively reduces the cross-linking density, prevents lens brittleness, and ensures durability and stability for prolonged wear.Pharnorcia® A701 (CAS: 191920-47-5) truly achieves the coexistence of "high oxygen permeability" and "prolonged hydration." Based on fundamental material science, it establishes a protective barrier for sensitive eyes that allows free breathability while delivering spring-like moisturization.


Previous : Pharnorcia® Ophthalmic Material IEM-PDMS A702 (CAS: 878288-97-2): The Structural Core of the Hydrogel

Next : Pharnorcia® PDMS-diMA (A621) (CAS: 58130-03-3) provides robust visual assurance

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