Fig. 2: Spinnability of CPOU.

a FTIR spectra of as synthesized CPOU and CPOU fiber. b Temperature-dependent curves of storage modulus and loss modulus of CPOU. c Temperature-dependent curve of complex viscosity of CPOU. d Photograph of CPOU fiber.
a FTIR spectra of as synthesized CPOU and CPOU fiber. b Temperature-dependent curves of storage modulus and loss modulus of CPOU. c Temperature-dependent curve of complex viscosity of CPOU. d Photograph of CPOU fiber.