Abstract: | Using a noncontact atomic force microscope, we found that single molecules in a chiral helical π‐conjugated polymer could form a unique periodic structure having a pitch of about 20 nm on the surface of a mica substrate. The diversity of the periodic structures is also discussed. Some basic insights into the characteristics of single molecules (or their individual characteristics) in π‐conjugated polymers are revealed. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 3930–3935, 2004 |