Furan-Based Copolyesters from Renewable Resources: Enzymatic Synthesis and Properties

Area of Science:

• Polymer Chemistry
• Biocatalysis
• Sustainable Materials

Background:

• Enzymatic polymerization offers a sustainable route for converting renewable resources into polymers.
• Furan-based polymers are gaining interest due to their potential for high performance and renewable origins.

Purpose of the Study:

• To synthesize furan-based copolyesters using enzymatic polymerization.
• To investigate the influence of different aliphatic monomers on the polymerization process and resulting polymer properties.
• To compare the characteristics of enzymatically synthesized copolyesters with their polyester analogs.

Main Methods:

• Enzymatic polymerization using Novozyme 435 as a biocatalyst.
• Synthesis of copolyesters from dimethyl 2,5-furandicarboxylate (DMFDCA), 2,5-bis(hydroxymethyl)furan (BHMF), and various aliphatic linear diols or diacid ethyl esters.
• Characterization of the synthesized copolyesters, including molecular weight determination.
• Evaluation of the synthetic mechanism by varying monomer types and feed compositions.

Main Results:

• Furan-based copolyesters were synthesized with molecular weights up to 35 kg/mol.
• A significant decrease in molecular weight was observed when switching from aliphatic diols to diacid ethyl esters as monomers.
• The study characterized the obtained copolyesters and compared them to polyester analogs.

Conclusions:

• Enzymatic polymerization is a viable and sustainable method for producing furan-based copolyesters.
• The choice of aliphatic co-monomers critically influences the molecular weight and properties of the resulting polymers.
• These findings contribute to the design of sustainable, high-performance polymers through biocatalytic routes.