Abstract

AbstractCopolymerization reactions of two N‐propargylamides [1: HCCCH2NHCO(CH2)5CH3, 2: (HCCCH2NHCOC(CH3)3] were carried out with different monomer feed ratios. Compared with the two corresponding homopolymers, the series of resulting copolymers poly(1‐co‐2) had a higher helix content. They also performed very differently in conformational transitions, either from random coil to helix or from helix to random coil, mainly depending on the composition of the copolymers. Synergic effects among the pendent groups played a significant role in the copolymer main chains adopting stable helices.magnified image

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