Patent ID: 7858156

Claim:
A method of forming a buckled surface, comprising: modifying a surface of an elastomeric layer to form a superlayer; wherein the elastomeric layer comprises a crosslinked polymer having a first flexural modulus; wherein the superlayer comprises a modification reaction product having a second flexural modulus greater than the first flexural modulus; and wherein the modifying a surface of an elastomeric layer comprises using a technique selected from the group consisting of exposing the surface to ultraviolet light, exposing the surface to gamma radiation, exposing the surface to an electron beam, exposing the surface to ozone, exposing the surface to an oxygen plasma, exposing the surface to chemical vapor deposition, and combinations thereof, or exposing the surface to ultraviolet light and ozone, or using a technique selected from the group consisting of forming a polymer coating in contact with the elastomeric layer, depositing a metal film on the elastomeric layer, and polymerizing a second polymerizable monomer in the surface of the elastomeric layer to form an interpenetrated network; swelling the elastomeric layer with a polymerizable monomer, thereby causing buckling of the superlayer; and polymerizing the polymerizable monomer, thereby stabilizing the buckling of the superlayer.