Dic Corporation

Youki Kou

Hisakazu Tanaka

Yukie Uemura

The block copolymer intermediate represented by the following general formula (1) or (2) is used. In the formulae, Rand Reach independently represent a polymerization initiator residue, Rand Reach independently represent an aromatic group or an alkyl group, Yrepresents a polymer block of (meth)acrylic ester, Yrepresents a polymer block of styrene or a derivative thereof, and m and n each independently represent in an integer from 1 to 5. In the formulae, Rrepresents an alkylene group having 1 to 6 carbon atoms, L represents a linking group, Rrepresents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an aromatic group, and Rand Reach independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.

Block copolymer intermediate, block copolymer, and methods for producing same

Provided are a block copolymer having a narrow molecular weight distribution such that the copolymer can be used in a DSA technique, a block copolymer intermediate thereof, and methods for producing the same. A block copolymer intermediate represented by the general formula (1) or (2) is used: wherein, in the general formulae (1) and (2), each of Rand Rindependently represents a polymerization initiator residue, each of Rand Rindependently represents an aromatic group or an alkyl group, Yrepresents a polymer block of (a)an (meth)acrylic acid ester, Yrepresents a polymer block of styrene or a derivative thereof, L represents an alkylene group having 1 to 6 carbon atoms, X represents a halogen atom, and each of m and n independently represents an integer of 1 to 5.

Block copolymer intermediate, block copolymer, and production methods for same

Provided are a block copolymer having a narrow molecular weight distribution such that the copolymer can be used in a DSA technique, a block copolymer intermediate thereof, and methods for producing the same. A block copolymer intermediate represented by the general formula (1) or (2): wherein, in the formulae (1) and (2), each of Rand Rindependently represents a polymerization initiator residue, each of Rand Rindependently represents an aromatic group or an alkyl group, Yrepresents a polymer block of (a)an (meth)acrylic acid ester, Yrepresents a polymer block of styrene or a derivative thereof, L represents an alkylene group or a phenylene group, X represents a halogen group, and each of m and n independently represents an integer of 1 to 5.

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Takaishi, Japan

Youki Kou