The cyclopolymerizations of alpha,omega-diacetylene monomers, 1, 14-bis(4'-ethynylphenoxy)-3,6,9,12-tetraoxatetradecane (1) and 1,17-bis(4'-ethynylphenoxy)-3,6,9,12,15-pentaoxaheptadecane (2), were carried out in chloroform at a monomer concentration of 0.02 mol L-1 using Rh(nbd)BPh4 as the catalyst to afford organic-solvent-soluble and gel-free polymers. The obtained polymers were assignable to poly(phenylacetylene) derivatives with crown ether on the main chain (poly-1 and poly-2, respectively). In addition, the laser Raman spectra showed that both polymers possessed a highly cis-transoidal stereoregularity. The CD spectra of poly-1 and poly-2 in the presence of the perchloric acid salts of L-phenylglycine (L center dot Pgly center dot HClO4) showed a characteristic induced CD (ICD) in the UV-vis absorption region of the polymer backbone from 290 to 530 nm, and the CD patterns of both polymers in the presence Of D-and L center dot Pgly center dot HClO4 were mirror images. Like other dynamic helical polymers, the amount of a guest, temperature, and solvent had significant influences on the induced helical structure.