| Title | Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer |
|---|---|
| ID_Doc | 29141 |
| Authors | Molendijk, D; van Beurden, K; van Schijndel, J |
| Title | Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer |
| Year | 2020 |
| Published | |
| Abstract | The development of chemically recyclable biopolymers offers opportunities within the pursuit of a circular economy. Chemically recyclable biopolymers make a positive effort to solve the issue of polymer materials in the disposal phase after the use phase. In this paper, the production of biobased semi-aromatic polyesters, which can be extracted entirely from biomass such as lignin, is described and visualized. The polymer poly-S described in this paper has thermal properties similar to certain commonly used plastics, such as PET. We developed a Green Knoevenagel reaction, which can efficiently produce monomers from aromatic aldehydes and malonic acid. This reaction has been proven to be scalable and has a remarkably low calculated E-factor. These polyesters with ligno-phytochemicals as a starting point show an efficient molecular recycling with minimal losses. The polyester poly(dihydrosinapinic acid) (poly-S) is presented as an example of these semi-aromatic polyesters, and the polymerization, depolymerization, and re-polymerization are described. |
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