| 主权项 |
1. A polymeric ophthalmic or otorhinolaryngological device material comprising:
at least 85 w/w % of a polystyrene of structure (I): wherein: ntot represents values of n, which are separate integer values n=1 through n=ntot; mtot represents values of m, which are separate integer values m=1 through m=mtot; ptot represents values of p, which are separate integer values p=1 through p=ptot; R1 independently=H, CH3, or CH2CH3; R2 independently=H or R3; and R3 is independently=linear alkyl, branched alkyl, alkyl ether, alkoxy, ester or any combination thereof for each separate combination of values of n and p and m and p; A=independently, nothing or a connector moiety; B=independently, nothing or a connector moiety; ntot=is independently 1 or greater for each value of p; mtot=is independently 1 or greater for each value of p; and ptot=5 or greater; and wherein, numerically, R2=R3 at least 50% of the time and wherein the device material is shaped into a device selected from the group consisting of intraocular lenses; contact lenses; keratoprostheses; corneal inlays or rings; otological ventilation tubes; and nasal implants; and wherein the polystyrene of structure (I) is formed by the polymerization of styrene monomers of the following structure (II):and
wherein the polystyrene of structure (I) is formed from at least 90% but no greater than 97% of the monomers of structure (II) polymerized to form the device material; wherein the device material has a refractive index in the dry state of at least 1.47, an elongation of at least 150% and a Young's modulus of less than 6.0 MPa. |
