Patent ID: 8617786

Claim:
A composition comprising a silsesquioxane, a reaction initiator, a pore generator, and a polymer comprising a repeating unit having a structure selected from structures I and II: wherein each of R, R 1 , R 2 and R 3 is independently selected from hydrido, C 1-6 alkyl and haloalkyl; C 4-7 cycloalkyl and halocycloalkyl; C 1-6 alkenyl and haloalkenyl; C 3-4 alkylenylcarbonyloxy; C 5-10 cycloalkylenylcarbonyloxy and C 6-12 aryl and haloaryl; x is 1-4 and n=2-5000, wherein the reaction initiator is selected from the group consisting of a photo radical initiator, a thermal radical initiator, a photoacid generator, a photo base generator, and a thermal base generator, and wherein the composition is solvent-free.