Unsaturated polyester (UPE) resins are used in a variety of thermosetting applications due to the reduced cost when compared to epoxy resins; however, UPE resins also have reduced thermomechanical performance. Investigating avenues to improve the performance of UPEs has led to the use of bio-based starting materials as structural components of the synthesized prepolymers as a result of their advantageous structural features. Isosorbide, a compound derived from renewable feedstocks, has been utilized to provide additional stiffness from the diol component for novel unsaturated polyesters resins. These resins have been shown to possess Tg's (32-72°C) and storage moduli (540-2200 MPa) that are in the desired range for composite materials with viscosities (1.2-25 Pa s) amenable to a variety of liquid molding techniques.
|Original language||English (US)|
|Journal||Journal of Applied Polymer Science|
|State||Published - Aug 1 2015|
All Science Journal Classification (ASJC) codes
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry