Aromatic block copolymer, decomposition method thereof and analysis method using the decomposition method
申请人:Takigawa Hiroshi
公开号:US20090197763A1
公开(公告)日:2009-08-06
Provided is a decomposition method of an aromatic block copolymer, wherein the aromatic block copolymer comprises a segment 1 represented by the following general formula (1) and a segment 2 comprising a structural unit represented by the following general formula (2) and/or a structural unit represented by the following general formula (3), and the segment 2 is subjected to chemical decomposition.
(wherein m represents an integer of 5 or more, Ar
1
represents a divalent aromatic group that may have a substituent, and Ar
1
s of 5 or more may be the same as or different from each other,)
Ar
10
—X
10
(2)
Ar
20
—Y
20
—Ar
21
—X
20
(3)
(wherein Ar
10
, Ar
20
and Ar
21
each independently represent a divalent aromatic group that may have a substituent, X
10
and X
20
each independently represent an oxygen atom, a sulfur atom, an alkylene group having 1 to 10 carbon atoms or a fluorine-substituted alkylene group having 1 to 10 carbon atoms, and Y
20
represents a sulfonyl group, a carbonyl group or a fluorine-substituted alkylene group having 1 to 20 carbon atoms).