Fig. 5: Investigations on ECTFE-based block copolymers.

a Synthesis of ECTFE-based block copolymers via chain-extension polymerization and post-modification reaction (In SEC characterizations, P6a-P9 were analyzed with 1,2,4-trichlorobenzene (160 °C), P10 was analyzed with N,N-dimethylformamide (25 °C)). b SEC profiles of ECTFE P6a and block copolymers (P7-P9). c DOSY NMR spectra of ECTFE P6a, and block copolymers (CDCl3 and DMSO-d6). d DSC curves of copolymers from P6a to P10.