FTIR spectra none shows the presence of AlN because it can
FTIR spectra none shows the presence of AlN as it can -1 AlN that none of the CA/AlN composites has theE1(TO) peak of AlN at 672 ten represents be clearly observed at 672 cm (peak 1) which can be assigned to sturdy [113]. Peak two to cellulose acetate to E1(TO) groups. The two to at 1750 cm-1 (peak 7) acetate cm-1 (peak 1) which can be assigned functional [113]. Peakband10 represents cellulosewas attributed to C=O -1 from cellulose at 1750 cm the band was attributed to six) was assigned to CH functional groups. The band acetate and-1 (peak 7)at 1428 cm (peak C=O from cellulose two vibrations. -1 (peak 3) and 1250 cm-1 (peak four) had been resulting from acetate and theThe sharp absorption peakswas1041 cm to CH2 vibrations. The sharp abband at 1428 cm-1 (peak six) at assigned presence of-1C-O stretching [14,15]. The band at 912 cm-1 (peak two) is often attributed to sorption peaks at 1041 cm (peak 3) and 1250 cm-1 (peak four) had been due to presence of C-O C-O stretching and cm (peak vibrations. Moreover, 1366 cm-1 (peak five) stretching [14,15]. The band at 912CH2-1rocking2) may be attributed to C-O stretching and was assigned -1 to CH3 . Moreover, 1366 cm-1 2942 cm-1 assigned for the The at 3487 CH2 rocking vibrations. The broad peak at and(peak 5) was(peak 9) andCH3. peak broad cm (peak 10) attributed to C-H aromatic vibrations (peak ten) attributed to C-H aropeak at and 2942 cm-1 (peak 9) plus the peak at 3487 cm-1 and O-H stretching of cellulose acetate [16,17], respectively. FTIR usually do not show acetate [16,17], respectively. FTIR do are matic vibrations and O-H stretching of celluloseany functional groups of AlN which not present within the CA/AlN composites. This are present inside the CA/AlN signal of CA blocks the weak show any functional groups of AlN whichmight be because the strongcomposites. This Methyl jasmonate custom synthesis signals of AlN within the composite. could possibly be since the sturdy signal of CA blocks the weak signals of AlN within the composite.Figure four. FTIR spectra from the CA/AlN composites.the CA/AlN composites. Figure four. FTIR spectra of3.1.three. Raman Spectroscopy Spectroscopy three.1.3. Raman The functional The functional groups clearly observed by FTIR,observed by FTIR, while Raman groups of CA could by of CA could by clearly even though Raman spectroscopy was made use of to further was utilized to further CA/AlN composites and AlN. The varspectroscopy investigate both the investigate each the CA/AlN composites and AlN. ious spectra acquired were spectra acquired had been The characteristics of 5. The qualities of Raman The several YTX-465 supplier illustrated in Figure 5. illustrated in Figure Raman signal for cellulose was clearly for cellulose 2934 clearly observed at 2934 cm-1 (peak 6) which can be assigned to C-H signal observed at was cm-1 (peak 6) that is assigned to C-H stretching and asymmetric stretching vibrations on the C-O-C glycosidic linkage. C-O-C glycosidic linkage. In addistretching and asymmetric stretching vibrations in the In addition, Raman signals at 1380 tion, Raman signals at 1380 1754 cm-1 1435 (peak 4)attributed cmC=O vibra- are attributed (peak 3), 1435 (peak 4) and (peak 3), (peak five) are and 1754 to -1 (peak five) tions of your carbonyl group and asymmetric and symmetric vibrations of C-H bond which vibrations of to C=O vibrations on the carbonyl group and asymmetric and symmetric C-H bond which exist inside the acetyl group from CA [179]. Apart from, the presence of AlN exist in the acetyl group from CA [179]. Besides, the presence of AlN might be clearly could be clearly observed at 612 that are linked (peak 1 (TO) an.