Synthesis on N,N,N- Triethylaminodeoxycellulose from nata de coco and its evaluation as an anion exchanger

Date

6-1998

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Evelyn B. Rodriguez

Co-adviser

Veronica P. Migo

Committee Member

Maxima E. Flavier

Abstract

N,N,N-triethylaminotleoxycelluloses (TEAM and TEAD2) were prepared by the amination of two nata de COCO Cellulose derivatives: 6-chlorodeoxycellulose (6-('DC) and tosykellulose, respectively. 'Me preparation of (i-CIX' was done by the reaction of 'mode roc() cellulose and thionyl chloride in MIK Tosylcellulose was synthesized by the traction of tosyl chloride with moo de coca cellulose in pyridine. The degree of substitution of TEAI)l (0.12) was found to be higher than that of 1 EAD2 (0.03) as determined by total Kjeldahl nitrogen (TKN). 'Me different samples ( nom de coca losykellulose and 1 I \ DI ) were characterized by IR spectroscopy. 'the IR spectra of 'MAD' showed that there was a reduction in intensity of the 011 peak, implying that some of the 011 groups were substituted by trieihylamine. The IR spectra of tosyl cellulose ester showed the presence of the S--0 peaks at 1185.82 cm r and C-C peaks at 1615.67 cm-1 which were not (bnd in the spectra of nata de coco. I !sing chloride as analyte, TEAI)l was further characterized in tents of its anion exchange capacity (AEC) and was compared to that of a commercial anion exchanger, The AEC of now de coco li and Amberlite IRA-400 the AEC of nata de coco TEADI and And Amberlite IRA-400 were found to be 0.0, 87, 3.29, respectively. Studies on the efficiency for anion absorption showed that 11,ADI can effect a 45.98% removal of NO; ions in an aqueous medium at the maximum absorption time of 3 hours.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1998 C4 J33

Document Type

Thesis

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