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US 10,377,894 B2Granted
Block copolymer
AssigneeLG Chem, Ltd.
InventorsJeong Kyu Lee, Je Gwon Lee, In Young Song, Sung Joon Oh, Yeon Joo Kang, Sung Soo Yoon, Jung Keun Kim
Life of this patent
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Abstract
The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.
Claims26
A block copolymer comprising a first block and a second block different from the first block,
- wherein the first block comprises a linear or branched side chain of which a number of chain-forming atoms is 8 or more, wherein the number of chain forming atoms is a number of atoms constituting the longest linear structure in the side chain,
- and wherein the first block exhibits peaks having a full width at half maximum of 5 degrees to 70 degrees at an azimuth angle ranging from −90 to −70 degrees and at an azimuth angle ranging from 70 to 90 degrees of a diffraction pattern of scattering vectors ranging from 12 nm−1 to 16 nm−1 in a grazing incidence wide angle X-ray scattering (GIWAXS) spectrum and wherein the azimuth angle is an angle when an out of plane diffraction pattern of the GIWAXS spectrum is set to be 0 degree.
Dependencies are inferred from the claim text.