INFRARED-SPECTRA OF JUTE STICK AND ALKALI-TREATED JUTE STICK

Defatted jute stick was treated with sodium hydroxide solution (2% w/v) at ambient temperature (approximately 32-degrees-C) and boiling water bath temperature (95-97-degrees-C). Infrared (IR) spectra of defatted jute stick and alkali-treated jute stick were studied. The IR spectra of the alkali-treated jute stick were conspicuous by the absence of the 1730 cm-1 band, as compared to that of jute stick. Another characteristic feature of the alkali treated jute sticks is the absence of the band at 1240 cm-1, which is replaced by the 1265 and 1225 cm-1 bands; other bands in the above samples also recorded significant changes.