Studies of Thermal Polymerization of Vegetable Oils with a Differential Scanning Calorimeter

Content Provider	Semantic Scholar
Author	Wang, Chaohua
Copyright Year	2007
Abstract	Vegetable oils are often thermally polymerized to provide a vehicle for printing inks and paints. The formations of isomerization, and the intraand intermolecular bonds involved in the thermal process are crucial in designing a product with the appropriate characteristics. It was found, with a differential scanning calorimeter, that the thermal polymerization of various vegetable oils could be activated at lower temperatures under a dry-air purge and/or in the presence of metallic catalysts. The Diels-Alder reaction and the formation of intermolecular bonds in alkali-refined soybean oil under a dry-air purge could be activated at 99 and 161°C in the presence of metallic catalysts, compared with 231 and over 300°C in the absence of metallic catalysts, respectively. The energies needed to activate the Diels-Alder reaction and to form intermolecular bonds were calculated, and is in good agreement with available data. The hardness test of baked vegetable-oil systems was also implemented to qualitatively determine the degree of cross-linking. Paper no. )903 7 in JAOeS 76, 1211-1216 (October 1999).
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://naldc.nal.usda.gov/download/24870/PDF
Language	English
Access Restriction	Open
Subject Keyword	Activation action Alder plant Alkalies Energy, Physics Hardness Tests Ink (substance) Leukemoid Reaction Mineral Oil 1000 MG/ML Enema Ninety Nine Oils, Volatile Paint Printing sennosides, USP 8.6 MG Oral Tablet
Content Type	Text
Resource Type	Article