Patent ID: 8710150

Claim:
A block copolymer composition, comprising: a diblock copolymer blend, comprising: a first poly(methyl methacrylate)-b-poly((trimethylsilyl)methyl methacrylate) diblock copolymer (“DB1”) having a DB1 number average molecular weight, M N-DB1 , of 10 to 1,000 kg/mol; a DB1 polydispersity, PD DB1 , of 1 to 3; and, a second poly(methyl methacrylate)-b-poly((trimethylsilyl)methyl methacrylate) diblock copolymer (“DB2”) having a DB2 number average molecular weight, M N-DB2 , of 1 to 1,000 kg/mol; a DB2 polydispersity, PD DB2 , of 1 to 3.