Temperature-Dependent Fourier Transform Infrared Spectroscopy (TD-FTIR) was used to observe the crystallization process and sequence of equal molecular weight poly(ethylene oxide)-b-poly(caprolactone) (PEO-b-PCL) samples. The copolymer was dissolved in chloroform and cast onto KBr salt plates to create films for analysis. Samples were melted after casting and crystallized isothermally at different temperatures. Differences in sequence of crystallization as well as the rate of crystallization were present in the process when temperature and molecular weight varied. These results have led to our present research on trying to control which block crystallizes first via solvent variation.

Crystallization trends of equal molecular weight poly(ethylene oxide)-b-poly(caprolactone)

253rd National Meeting (2017)

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