Thermosetting Allyl Resins Derived from Soybean Oil

• DOI: 10.1021/ma201366e
• Publication Date: 2011-08-22T13:09:51Z
• Authors: Qiang Luo; Min Liu; Yijin (Frank) Xu; Mihail Ionescu; Zoran S. Petrović
• Keywords: Thermosetting polymer; Epoxidized soybean oil; Maleic anhydride; Dicyclopentadiene; Soybean oil

A new class of biopolymers based on plant oils with allylic double bonds was prepared from vegetable by oxirane ring-opening. Investigation model systems revealed that the main side reactions during ring-opening were formation intramolecular cyclic ethers in epoxidized linoleic fatty ester and oligomerization. Side oleic insignificant. Allyl alcohol ring-opened soybean oil (AESBO) then copolymerized maleic anhydride (MA) to prepare thermosetting resins free radical polymerization esterification. In best case, high gel content (99%), low water absorption (∼1%), swelling ration toluene (∼4%) achieved. Glass transition temperatures these ranged below room temperature about 123 °C depending loading MA. Tensile modulus varied few MPa 1.1 GPa, highest tensile strength 29 MPa.