Method of forming an image having multiple phases

Abstract

A method of forming an image having multiple phases is disclosed herein. The method includes forming exposed and unexposed areas, the exposed areas comprising a first polymer network exhibiting first and second phases that are chemically connected and have different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase, and the unexposed areas comprising a second polymer network comprising third and fourth phases that are chemically connected and have different refractive indices, the third phase being continuous, and the fourth phase comprising a plurality of structures dispersed within the third phase. The first and second polymer networks are chemically connected, and morphology formed by the first and second phases is different than that formed by the third and fourth phases.

What is claimed is: 
     
         1 . A polymerizable composition comprising:
 a telechelic siloxane;   a (meth)acrylate; and   a non-free radically polymerizable additive that is soluble or dispersible in the composition.   
     
     
         2 . The composition of  claim 1 , wherein the additive comprises liquid crystals, nanoparticles, or a mixture thereof. 
     
     
         3 . The composition of  claim 1 , further comprising an initiator. 
     
     
         4 . The composition of  claim 3 , wherein the initiator comprises a photoinitiator. 
     
     
         5 . The composition of  claim 1 , wherein the telechelic siloxane comprises a bis(3-aminopropyl)polydimethylsiloxane derivative or a compound represented by the formula: 
       
         
           
           
               
               
           
         
       
       wherein
 R is a divalent hydrocarbon group; 
 n is an integer from about 15 to about 1000; and 
 Y is selected from the group consisting of: 
 
       
         
           
           
               
               
           
         
       
     
     
         6 . The composition of  claim 5 , wherein the telechelic siloxane has a number average molecular weight of from 1,000 to about 200,000 grams/mole. 
     
     
         7 . The composition of  claim 1 , wherein the telechelic siloxane is derived from a siloxane diamine represented by the formula: 
       
         
           
           
               
               
           
         
       
       wherein
 R 2  is independently an alkyl, haloalkyl, aralkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo; 
 G is independently an alkylene, aralkylene, or a combination thereof; and 
 x is equal to an integer of from about 15 to about 1000. 
 
     
     
         8 . The composition of  claim 1 , wherein the (meth)acrylate is selected from (meth)acrylate acids and (meth)acrylate esters of alkyl alcohols, wherein the alkyl groups comprise from 1 to 20 carbon atoms. 
     
     
         9 . The composition of  claim 1 , wherein the (meth)acrylate is selected from the group consisting of iso-bornyl acrylate, iso-bornyl methacrylate, tert-butyl acrylate, iso-octyl acrylate, cyclohexyl acrylate, cyclohexyl methacrylate, trimethyl cyclohexyl acrylate, methyl methacrylate, methacrylic acid, benzyl methacrylate, ethyl methacrylate, 1-methylcyclohexyl methacrylate, 2-methylcyclohexyl methacrylate, 3-methylcyclohexyl methacrylate, 4-methylcyclohexyl methacrylate, 2-phenoxy ethyl methacrylate, 2-ethylhexyl acrylate, hexanediol dimethacrylate or combinations thereof. 
     
     
         10 . The composition of  claim 1 , wherein the ratio of telechelic siloxane to (meth)acrylate comprises from about 10/90 to about 75/25 (w/w). 
     
     
         11 . The composition of  claim 1 , wherein the ratio of telechelic siloxane to (meth)acrylate comprises from about 25/75 to about 50/50 (w/w).