Synthesis and Thermal Study of PCL and PEG-Based Two Soft SegmentsPolyurethane

Investigating the thermal properties of polyurethanes is a vital task for their effective utilizationacross various applications. This study compares the thermal properties of different polyurethanesbased on polycaprolactone, polyethylene glycol, and blend of these polyether and polyester softsegments. By comparing the results of FTIR with literature, the correct synthesis of the samples wasconfirmed [۲]. According to DSC results, it can be observed that the onset temperature for theformation of ordered structures in the hard segment is higher for the PU-PEG sample compared toother samples. This can be attributed to the ether structure of PEG and the absence of hydrogen bondsbetween PEG and the hard segments, indicating the highest degree of phase separation in this sample.

کلیدواژه ها:

Polymer Synthesis and characterization ، polyurethane