%0 Journal Article
%A Tatang Shabur, Julianto
%A Restu Ayu, Mumpuni
%D 2014
%F UNY:11416
%I Yogyakarta State University
%J Proceeding of International Conference On Research, Implementation And Education Of Mathematics And Sciences 2014
%K chitosan, N-alkyl chitosan, methyl ester, transesterification, used cooking oil
%T CHITOSAN AND N-ALKYL CHITOSAN AS A HETEROGENEOUS BASE  CATALYST IN THE TRANSESTERIFICATION REACTION OF  USED COOKING OIL
%U http://eprints.uny.ac.id/11416/
%X It has conducted research on the use of chitosan, and N-alkyl chitosan (N-methyl  chitosan, N-isopropyl chitosan) as a heterogeneous base catalyst in the transesterification  reaction of used cooking oil.  Chitosan, N-methyl chitosan, and N-isopropyl chitosan synthesized by reacting  chitosan with formaldehyde and acetone successively forming Schiff bases were then  reduced using NaBH4. Then chitosan, N-methyl chitosan, N-isopropyl chitosan are used  as heterogeneous catalysts in the transesterification reaction of used cooking oil.  The results showed that inclusion of alkyl groups to the chitosan structure leads to  increase in the level of alkalinity in which chitosan, N-methyl chitosan, and N-isopropyl  chitosan respectively are 0.066 mol/g, 0.0068 mol/g, 0.0070 mol/g . It is also evident  from the increase in the area of methyl palmitate and methyl oleate. The use of Nisopropyl  chitosan gave the greatest methyl ester yield results is about 8.6%.