Synthesis and modification of maleic anhydride-vinyl acetate copolymer by a long alkyl chain alcohol for cold flow impovers of biodiesel

Main Article Content

Thi Thu Huong Tran Thi Tuyet Mai Phan Van Boi Luu Ngoc Lan Pham

Abstract

This research illustrates the results of a study on the synthesis of maleic anhydride-vinyl acetate copolymers (MAVA) with the monomer molar ratio of 1:1 by the radical polymerisation method in which benzoyl peroxide was used as a catalyst. The structure and composition of MAVA were characterised by FTIR, 1H-NMR and 13C-NMR spectra. The molecular weight of the copolymers was determined by the viscosity method. The copolymers were then modified by the esterification reaction with hexadecanol - a long alkyl chain alcohol. The modified copolymer products (MAVAC) were used as additives to improve the cold flow properties of palm oil-based biodiesel through pour point temperature measurement according to standard ASTM-D97 and dynamic viscosity according to ASTM D445-97. The results showed that the MAVAC additives with the combshape structure at the concentration of 1000 ppm could decrease the pour point temperature of palm oil-based biodiesel by 5.5oC and dynamic viscosity by 0.17 cPs.

 

DOI: https://doi.org/10.31276/VJSTE.60(3).03

Article Details

How to Cite
TRAN, Thi Thu Huong et al. Synthesis and modification of maleic anhydride-vinyl acetate copolymer by a long alkyl chain alcohol for cold flow impovers of biodiesel. Vietnam Journal of Science, Technology and Engineering, [S.l.], v. 60, n. 3, p. 3-8, sep. 2018. ISSN 2525-2461. Available at: <http://vietnamscience.vn/index.php/VJSTE/article/view/138>. Date accessed: 14 dec. 2018.
Section
PHYSICAL SCIENCES