Research Article
The Effect of Starch and Magnetite on the Physicochemical Properties of Polyurethane Composites for Hyperthermia Treatment
Table 2
Interpretation of the FTIR spectra of PU materials crosslinked with starch and/or modified with magnetite.
| PU_0S_0M | PU_25S_0M | PU_50S_0M | PU_75S_0M | PU_100S_0M | PU_0S_1M | PU_25S_1M | PU_50S_1M | PU_75S_1M | PU_100S_1M | PU_0S_0.5M | PU_100S_0.5M | |
| 3343 | 3340 | 3344 | 3340 | 3348 | 3341 | 3340 | 3344 | 3344 | 3341 | 3340 | 3344 | N-H stretching | 2944 | 2944 | 2944 | 2944 | 2944 | 2945 | 2953 | 2944 | 2944 | 2948 | 2945 | 2944 | CH2 asymmetric stretching | 2866 | 2866 | 2866 | 2864 | 2866 | 2864 | 2864 | 2864 | 2864 | 2862 | 2864 | 2864 | CH2 symmetric stretching | 1723 | 1723 | 1723 | 1722 | 1723 | 1722 | 1725 | 1724 | 1723 | 1724 | 1723 | 1724 | C=O stretching | 1531 | 1531 | 1532 | 1532 | 1533 | 1531 | 1531 | 1532 | 1532 | 1532 | 1531 | 1533 | N-H deformation | 1414 | 1416 | 1414 | 1414 | 1414 | 1418 | 1414 | 1416 | 1416 | 1414 | 1416 | 1414 | C-N stretching | 1366 | 1366 | 1366 | 1366 | 1366 | 1366 | 1364 | 1366 | 1365 | 1364 | 1365 | 1365 | CH3 bending | 1107 | 1105 | 1105 | 1105 | 1105 | 1103 | 1101 | 1103 | 1103 | 1101 | 1103 | 1103 | C-O asymmetric stretching | 1060 | 1046 | 1049 | 1040 | 1045 | 1043 | 1065 | 1044 | 1044 | 1045 | 1044 | 1045 | C-O symmetric stretching | — | — | — | — | — | 586 | 590 | 590 | 592 | 592 | 586 | 592 | Vibrations of the Fe-O functional group |
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