The Synthesis and Characterization of Farnesene-Based Oligomers
Trans-β-farnesene is produced through fermentation of sugar feedstocks. The pathway offers an alternative to petroleum-based feedstocks derived as by-products of naptha or ethane cracking. Anionic polymerization of the monomer produces a highly branched "bottle-brush" structure, with rheological properties that are markedly different than those of linear diene polymers. Specifically, a lack of entanglements is observed even at relatively high molar masses. For hydroxyl-terminated oligomers, Tg as a function of molar mass follows a trend opposite non-functional materials.
The synthesis and characterization of trans-β-farnesene-based polymers will be presented, including anionically prepared low molecular weight diols and monols.