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5231193 
Journal Article 
Physicochemical Properties Study and GC/MS Analysis of Monomer Acid 
Liu Xiao-feng; Cao Xiao-yan 
2013 
Yes 
Advanced Materials Research
ISSN: 1022-6680 
Advanced Materials Research 
781-784 
72-75 
WOS:000336634800015 
Monomer acid was the byproduct of preparing dimer acid from oleic acid in industry. Study its components and properties will contribute to the exploitation and application of it. First, we researched the physicochemical properties of monomer acid, such as iodine value, acid value, saponification value, and so on. The conclusion showed that the sample was a mixed fatty acid which contained longer chain of carbon and had high quality. Then, the chemical constituents of fatty acid in monomer acid were determined by GC/MS. After the sample was etherified via methanol, the chemical components and their relative contents of fatty acid from monomer acid were analyzed by GC/MS. Fifteen fatty acids predominated: myristic acid (12.16%), palmitic acid (8.51%), stearic acid (32.72%), and oleic acid (25.53%). 
monomer acid; physicochemical properties; GC/MS; fatty acid