Chemoenzymatic Epoxidation of Highly Unsaturated Fatty Acid Methyl Ester and Its Application as Poly(lactic acid) Plasticizer

The anti-oxidation stability of waste oil biodiesel (WME) was evaluated on an oxidation simulator set up by the author. The results showed that oxidative stability of WME was worse than that of petrodiesel by exhibiting higher acid values and peroxide values, as well as greater viscosity increases after oxidation. Furthermore, a conjecture was taken about the configurational changes and the oxidation mechanisms of unsaturated fatty acid methyl ester molecules in the oxidation process, according to the principles of free radical reactions and the results of both infrared and ultraviolet spectroscopic analysis. An idea was put forward that, during oxidation, cis-trans isomerization might occur in unsaturated fatty acid methyl ester molecules and conjugated double-bond might produce due to transfer of double-bond.

Download Full-text

Studies on the Cycloaddition Reaction to Unsaturated Fatty Acid Methyl Ester. V.

Journal of Japan Oil Chemists Society ◽

10.5650/jos1956.20.492 ◽

1971 ◽

Vol 20 (8) ◽

pp. 492-500

Author(s):

Osamu SUZUKI

Keyword(s):

Fatty Acid ◽

Methyl Ester ◽

Fatty Acid Methyl Ester ◽

Unsaturated Fatty Acid ◽

Cycloaddition Reaction ◽

Acid Methyl Ester ◽

Acid Methyl

Download Full-text

Anti-Oxidation Stability and its Mechanism of Soybean Biodiesel

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.339.695 ◽

2013 ◽

Vol 339 ◽

pp. 695-699

Author(s):

Jiang Wu ◽

Bo Shui Chen ◽

Jian Hua Fang ◽

Jiu Wang

Keyword(s):

Fatty Acid ◽

Double Bond ◽

Methyl Ester ◽

Fatty Acid Methyl Ester ◽

Unsaturated Fatty Acid ◽

Oxidation Stability ◽

Acid Methyl Ester ◽

Acid Methyl ◽

Soybean Biodiesel ◽

Set Up

The anti-oxidation stability of soybean biodiesel (SME) was evaluated on an oxidation simulator set up by the author. The results showed that oxidative stability of SME was worse than that of petrodiesel by exhibiting higher acid values and peroxide values, as well as greater viscosity increases after oxidation. Furthermore, a conjecture was taken about the configurational changes and the oxidation mechanisms of unsaturated fatty acid methyl ester molecules in the oxidation process, according to the principles of free radical reactions and the results of both infrared and ultraviolet spectroscopic analysis. An idea was put forward that, during oxidation, cis-trans isomerization might occur in unsaturated fatty acid methyl ester molecules and conjugated double-bond might produce due to transfer of double-bond.

Download Full-text

Anti-Oxidation Stability and its Mechanism of Rapeseed Biodiesel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.772.287 ◽

2013 ◽

Vol 772 ◽

pp. 287-291

Author(s):

Jiang Wu ◽

Bo Shui Chen ◽

Jian Hua Fang ◽

Jiu Wang

Keyword(s):

Fatty Acid ◽

Double Bond ◽

Methyl Ester ◽

Fatty Acid Methyl Ester ◽

Unsaturated Fatty Acid ◽

Oxidation Stability ◽

Acid Methyl Ester ◽

Acid Methyl ◽

Set Up ◽

Oxidation Mechanisms

The anti-oxidation stability of rapeseed biodiesel (RME) was evaluated on an oxidation simulator set up by the author. The results showed that oxidative stability of RME was worse than that of petrodiesel by exhibiting higher acid values and peroxide values, as well as greater viscosity increases after oxidation. Furthermore, a conjecture was taken about the configurational changes and the oxidation mechanisms of unsaturated fatty acid methyl ester molecules in the oxidation process, according to the principles of free radical reactions and the results of both infrared and ultraviolet spectroscopic analysis. An idea was put forward that, during oxidation, cis-trans isomerization might occur in unsaturated fatty acid methyl ester molecules and conjugated double-bond might produce due to transfer of double-bond.

Download Full-text