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. Author manuscript; available in PMC: 2021 Jan 7.
Published in final edited form as: Polym Chem. 2019 Dec 3;11(1):39–46. doi: 10.1039/C9PY01452G

Fig. 2.

Fig. 2

Characterization of polymerization and subsequent crystallization with the addition of the crosslinker TAT. A) Polymerization kinetics were obtained via real-time Fourier-transform infrared spectroscopy (FTIR) after irradiation with a 405 nm LED for 10 s (1 mW/cm2). No significant change in the polymerization rate was observed with increasing crosslinker content, although the final SH conversion slightly decreased from >99% conversion without TAT to ~ 97% with 10 mol% TAT. B) Dynamic scanning calorimetry (DSC) was used to confirm the presence of crystalline domains and to determine Tm for each sample. The degree of crystallinity and the Tm,max decreased as the concentration of TAT increased. C) Polarized optical microscopy (POM) was used to confirm crystallization of bulk samples with 0, 5, and 10 mol% TAT. Images were taken after crystallization ceased, and areas devoid of any crystals are visible for 10 mol% TAT (scale bar: 50 μm).