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Intermolecular CHBs between phenolic O-H group in DP and ester C=O group in the soft segment of TPU (a); intramolecular CHBs between urethane N-H group in the hard segment of TPU and ester C=O group in the soft segment of TPU (b) and intramolecular CHBs between urethane N-H group in the hard segment of TPU and urethane C=O group in the hard segment of TPU (c) of TDP hybrids at 298 K.
