| 摘要 |
PROBLEM TO BE SOLVED: To provide a block copolymer useful for a resin modifier, adhesive, binder, plasticizer, molding material and others and a method of producing the same.SOLUTION: The present invention provides a block copolymer comprising a structure in which a vinyl ether polymer block is positioned between two vinyl ester polymer blocks, and a method for producing the same; and a block copolymer comprising a structure in which a vinyl ether polymer block is positioned between two vinyl alcohol polymer blocks, and a method for producing the same.SELECTED DRAWING: None |
