| abstract |
A dihalobiphenyl compound represented by the formula (1):n nwherein A represents an amino group substituted with one or two C1-C20 hydrocarbon groups or a C1-C20 alkoxy group, R 1 represents a fluorine atom, a C1-C20 alkyl group, etc., X 1 represents a chlorine atom, a bromine atom or an iodine atom, an k represents an integer of 0 to 3, and na polyarylene comprising a repeating unit represented by the formula (2):n nwherein A, R 1 and k represent the same meanings as defined above. |