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Novel thermosets prepared by cationic copolymerization of various vegetable oils—synthesis and their structure–property relationships

“…Their conversion into industrially useful plastics usually proceeds through either fatty acid CaC bond functionalization and subsequent copolymerization or through direct copolymerization of the fatty acid CaC bonds with a variety of alkene comonomers. For instance, Petrovic and coworkers have successfully converted the CaC bonds of soybean oil into polyols by epoxidizing the CaC bonds of the triglyceride oil, followed by oxirane ring-opening of the epoxidized oil [8][9][10][11][12]. The newly synthesized polyols are then reacted with a variety of isocyanates to produce polyurethanes.…”

Characterization of soy‐based polyurethane networks prepared with different diisocyanates and their blends with petroleum‐based polyols

“…Petrovic et al 10,11 studied the effect of the ratio of isocyanate groups to hydroxyl groups on the properties of soybased polyurethane networks (SPUNs). 10,11 In their study, the amount of diphenyl methane diisocyanate (MDI) available to crosslink with an SBP (functionality of 3.6 and hydroxyl number of 203 mg of KOH/ g) was varied. The hydroxyl number is defined as the number of hydroxyl groups in 1 g of the polyol expressed as an equivalent weight in potassium hydroxide.…”

Lightweight Materials Prepared from Vegetable Oils and Their Derivatives

“…PU based on soybean polyols prepared from Method 1 exhibited strengths of 40-50 MPa (33). Petrovic et al (34) studied the effect of NCO/OH molar ratio on PU based on soybean polyols prepared from Method 1 using methanol as the nucleophile. The resulting PUs were glassy with NCO/OH ratios of 1.05-0.8, while rubbery with NCO/OH ratios of 0.7-0.4.…”