Copolymer formulation for directed self-assembly, methods of manufacture thereof and articles comprising the same

US9765214B2 · kind B2 · utility

Assignees

• The Regents of the University of California · US
• Rohm and Haas Electronic Materials LLC · US
• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Phillip D. Hustad · Manvel, US
• Peter Trefonas, III · Medway, US
• Valeriy V. Ginzburg · Midland, US
• Bongkeun Kim · Goleta, US
• Glenn H. Fredrickson · Lompoc, US

Key dates

• Filing date: Feb 25, 2016
• Grant date: Sep 19, 2017
• Expiry date: Feb 25, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2261/418
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

Disclosed herein is a composition comprising a block copolymer; where the block copolymer comprises a first polymer and a second polymer; where the first polymer and the second polymer of the block copolymer are different from each other and the block copolymer forms a phase separated structure; an additive polymer; where the additive polymer comprises a bottle brush polymer; where the bottle brush polymer comprises a homopolymer that is the chemically and structurally the same as one of the polymers in the block copolymer or where the additive polymer comprises a graft copolymer that has a preferential interaction with one of the blocks of the block copolymers; and a solvent.