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