| 主权项 |
1. A block copolymer film nano-structured into nano-domains at a determined temperature, obtained from a basic block copolymer non-structured at said determined temperature and having at least one block comprising styrene and at least one other block comprising methyl methacrylate, wherein the block copolymer film has the following modified chemical formula:
(Aα(i)-co-Cγ)n-b-(Bβ(k)-co-Dδ)n-1-b-(Aα(i+1)-co-Eε)n-2-b-(Bβ(k+1)-co-Fζ)n-3-b- . . . -b-(Bβ(k+x)-co-Wω)n-p (I) where: “n” represents the number of blocks of the block copolymer; “A” represents styrene and “B” represents methyl methacrylate, or conversely; “C”, “D”, “E”, “F”, . . . , “W” respectively represent a co-monomer or mixture of co-monomers incorporated in each of the blocks of the block copolymer, the co-monomer or mixture of co-monomers incorporated in a styrene block differing from the co-monomer or mixture of co-monomers incorporated in a methyl methacrylate block; the subscripts αi and βk represent the number of units of styrene or methyl methacrylate monomers contained in each block of the block copolymer, and are all independent of one another; the subscripts γ, δ, ε, ζ . . . , and ω represent the number of co-monomer units in a given block, and are all independent of one another; the subscripts αi, βk, γ, δ, ε, ζ . . . , and ω are all greater than or equal to 1. |
