Process of preparing crosslinked, low loss polymers with tunable refractive indices

1. A process, comprising a) providing a mixture including i) a halocatechol diacrylate, a haloresorcinol diacrylate, or a halohydroquinone diacrylate component, ii) a charge transporting component having a radical polymerizable group, and iii) a radical initiator and b) initiating a radical polymerization.

2. The process of claim 1 , wherein the mixture further comprises a solvent.

3. The process of claim 2 , wherein the solvent includes a radical polymerizable group.

4. The process of claim 3 , wherein the solvent comprises an acrylate.

5. The process of claim 4 , wherein the solvent comprises benzyl acrylate, benzyl methacrylate, phenethyl acrylate, and phenyl methacrylate.

6. The process of claim 5 , wherein the diacrylate component is chosen from the group consisting of

wherein X is a halogen; R 1 is independently at each occurrence a hydrogen, a halogen, a C 1 -C 6 alkyl group that can be further substituted with one or more halogens, or a phenyl group containing at least one halogen; and m=1-4.

7. The process of claim 6 , wherein the charge transporting component comprises hole transporter.

8. The process of claim 7 , wherein the hole transporter includes an amine substituted with at least two aryl groups, wherein each aryl group may be further independently substituted with one or more halogens, alkyl, heteroalkyl, aryl, or heteroaryl groups.

9. The process of claim 8 , wherein the hole transporter comprises a carbazole that may be further independently substituted with one or more halogens, alkyl, heteroalkyl, aryl, or heteroaryl groups, a diphenyl amine that may be further independently substituted with one or more halogens, alkyl, heteroalkyl, aryl, or heteroaryl groups, a triphenyl amine that may be further independently substituted with one or more halogens, alkyl, heteroalkyl, aryl, or heteroaryl groups, or an tetraphenylbenzidine that may be further independently substituted with one or more halogens, alkyl, heteroalkyl, aryl, or heteroaryl groups.

10. The process of claim 1 , wherein the polymerizable group comprises a vinyl group or an acrylate group.

11. The process of claim 1 , wherein the initiator comprises a photoradical generator.

12. The process of claim 11 , wherein the photoradical initiator comprises acetophenone, propiophenone, or benzophenone.

13. The process of claim 1 , wherein the mixture further comprises a high molecular weight compound or oligomer that is substituted with at least one acrylate or vinyl group.

14. The process of claim 13 , wherein the high molecular weight compound or oligomer is chosen from the group consisting of poly(ethylene glycol)dimethacrylate, poly(ethyleneglycol)methacrylate, poly(ethylene glycol)methyl ether methacrylate, poly(ethylene glycol)divinyl ether, poly(ethylene glycol)-bisphenol A diglycidyl ether adduct tetra(methacrylate), 2,2′,6,6′-tetrabromobisphenol A ethoxylate (1 EO/phenol) diacrylate, a bisphenol A propoxylate glycerolate diacrylate, bisphenol F ethoxylate (2 EO/phenol) diacrylate, bisphenol A propoxylate glycerolate diacrylate, fluorescein O,O′-diacrylate, neopentyl glycol propoxylate (1 PO/OH) diacrylate, pentaerythritol diacrylate monostearate, trimethylolpropane benzoate diacrylate, trimethylolpropane ethoxylate (1 EO/OH) methyl ether diacrylate, and trimethylolpropane propoxylate triacrylate.