Autooxidized polyunsaturated oils/oily acids: Post-it applications and reactions with Fe(III) and adhesion properties
Elif Keles, B Hazer
proceeding (Uluslararası, Hakemli) | Yazar(lar): Elif Keles, B Hazer | Yıl: 2008 | Dergi/Kurum: MACROMOLECULAR SYMPOSIA — Özet: Soybean oil, sesame oil, linoleic acid and linolenic acid were epoxidized, peroxidized and hydroperoxidized via autooxidation under air oxygen and sunlight at room temperature to obtain novel
Soybean oil, sesame oil, linoleic acid and linolenic acid were epoxidized, peroxidized and hydroperoxidized via autooxidation under air oxygen and sunlight at room temperature to obtain novel post-it materials. Polymeric soybean oil peroxide and sesame oil peroxide were containing soluble part of 60%(w/w) together with crosslinked part of 40%(w/w) while polymeric linoleic and polymeric linolenic acids were completely soluble. The autooxidized soluble products with Mn varying between 800 and 3100 Daltons were used as post-it adhesive. The highest adhesion was observed in the case of polymeric soybean oil (3.0 Newton), while adhesion of commercial epoxidized soybean oil, polymeric linoleic and polymeric linolenic acid were 0.8, 0.5 and 0.5 Newton, respectively. Reactions of the autooxidized soluble products with Fe(NO3)(3) center dot 4H(2)O in the presence of ethanol, glycerol and diethylene-glycol gave the hydroxy functionalized products with the same M values and indicating no adhesive properties. When the commercial epoxidized soybean oil was reacted with Fe(NO3)(3) center dot 4H(2)O in the presence of the alcohols, Mn of the hydroxy functionalized polymeric oil was found to be unchanged. H-1 NMR, FT-IR, SEM and GPC techniques were used in the characterization of the products obtained.