Structural Evolution in Biorenewable Soy Based Polyurethanes

Facile synthesis and newly found biological activity of aminolyzed tung oil components with conjugated double bonds

“…Tung oil 11 or China wood oil is the sole oil that contains fatty acids with three conjugated double bonds among dozens of different commonly used vegetable oils. The investigation of vegetable oils has been one of the hot research fields in recent years, as it is based on a low-cost, renewable, environmentally friendly and biodegradable natural resource with attainable development, [12][13][14][15] whereas the study of tung oil-related properties is of special significance based on its special structural characteristics. 16 The main component of tung oil is the glycerine ester of elaeostearic acids (Fig.…”

Novel amphoteric polyurethane dispersions with postpolymerization crosslinking function derived from hydroxylated tung oil: synthesis and properties

“…Accordingly, research on polyurethanes based on new polyols from natural vegetable oils is becoming increasingly important. So far, hydroxyl-modied soybean oil (prepared by using the reaction sites of carbon-carbon double bonds in triglycerides) and its application in thermosetting polyurethane foam have been well studied; 4,5 the hydroxyl-modied tung oil prepared in the same way has also shown utility in composites. 6 Among the many available polyols 7 derived from fossil and natural oils, the hydroxyl-modied tung oil or hydroxylated tung oil (HTO) prepared by using ester alcoholysis or aminolysis is unique in that its molecular structure features two primary hydroxyl groups and a hydrocarbon chain containing three conjugated double bonds.…”