A high-molecular compound, characterized by containing a chain consisting of repeating units represented by the general formula (1) and having an average number of repeating units constituting the chain of 3 or above and a ratio of bonds formed between the head and the tail to all the bonds formed between repeating units of 85% or above: (1) wherein Ar
1
is a divalent aromatic group whose aromatic ring is an aromatic hydrocarbon ring; R
1
is a substituent on Ar
1
; n is an integer of 0 to 30; when n is 2 or above, plural R
1
's may be the same or different from each other, when the carbon atoms of a repeating unit of the general formula (1) are numbered as a divalent group according to Nomenclature of Organic Chemistry by IUPAC, between the two carbon atoms having free valencies, the carbon atom with a smaller number is defined as the head and the carbon atom with a larger number is defined as the tail; and no repeating unit of the general formula (1) has a two-fold axis of symmetry intersecting the straight line joining the head and the tail at right angles at the middle point.
US7452641B2
申请人:——
公开号:US7452641B2
公开(公告)日:2008-11-18
Jacobsen, Chemische Berichte, 1887, vol. 20, p. 901