Journal of Nanomaterials / 2012 / Article / Tab 3

Research Article

Role of Polymer Interactions with Clays and Modifiers on Nanomechanical Properties and Crystallinity in Polymer Clay Nanocomposites

Table 3

Band assignments of photoacoustic FTIR spectra of OMMT, PBT, and PCN.

SampleWave number range (cm-1)BandsReference

3646–3628O–H stretching of structural hydroxyl group[26]
3256–3035Ionic bonded N–H stretching
2932C–H asymmetric stretching
2853C–H symmetric stretching
1713–1701C=O stretching
1623Combination of O–H deformation and N–H bending
1511Asymmetric R–COO- stretching
1466CO–H bending
1396Symmetric R–COO- stretching
1112Si–O in-plane stretching
1060Si–O out-of-plane stretching
OMMT1022,997Si–O in-plane stretching
963Si–OH vibrations
921Al–O/Al–OH stretching vibration
884Al–FeOH deformation
847Al–MgOH deformation
799Si–O stretching of quartz and silica
727Si–O deformation perpendicular to optical axis
699Si–O deformation parallel to optical axis
623Coupled Al–O and Si–O out-of-plane vibration
531Al–OSi deformation
478Si–OSi vibration

3417–OH stretching
3052Aromatic C–H stretching[35]
2962C–H2 stretching[36]
2895Aliphatic C–H asymmetric stretching[35]
2863Aliphatic C–H symmetric stretching[35]
1722C=O stretching[37]
1583Aromatic C=C stretching[38]
1504Aliphatic C–H2 bending[37]
1453Aliphatic C–H2 bending[39]
1407Aliphatic aromatic C–H in-of-plane bending[36]
PBT1387CH2 wagging[39]
1281(C=O–)–O stretching[35]
1110CH2–O stretching[35]
1017Aromatic C–H bending[35]
873Aromatic C–H bending[40]
808Aromatic C–H bending[37]
729Aromatic C–H out-of-plane bending[35, 36]
685Aromatic =C–H out-of-plane deformation[38]
633Aromatic in-plane deformation[38]
497Aromatic out-of-plane deformation[38]
476Aromatic out-of-plane deformation[38]

3633–3679O–H stretching of structural hydroxyl group-OMMT[26]
3413–OH stretching
3260–3047Coupled N–H stretching and aromatic C–H stretching[35]
2963C–H2 stretching[36]
2895Aliphatic C–H asymmetric stretching[35]
2858Aliphatic C–H symmetric stretching[35]
1719C=O stretching[37]
1576Aromatic C=C stretching[38]
1503Aliphatic C–H2 bending[37]
1452Aliphatic C–H2 bending[39]
1406Aromatic C–H in-of-plane bending[36]
PCN1387CH2 wagging[39]
1278(C=O–)–O stretching[35]
1105CH2–O stretching[35]
1020Aromatic C–H bending[35]
873Aromatic C–H bending[40]
810Aromatic C–H bending[37]
729Aromatic C–H out-of-plane bending[35, 36]
685Aromatic =C–H out-of-plane deformation[38]
652Aromatic in-plane deformation[38]
624Tripled Al–O, Si–O out-of-plane and aromatic in-plane deformation[26]
497Aromatic out-of-plane deformation[38]
463Si–OSi deformation[26]

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