Properties of Novel Polyesters Made from Renewable 1,4-Pentanediol.

ABSTRACT: Novel polyester polyols were prepared in high yields from biobased 1,4-pentanediol catalyzed by non-toxic phosphoric acid without using a solvent. These oligomers are terminated with hydroxyl groups and have low residual acid content, making them suitable for use in adhesives by polyurethane formation. The thermal behavior of the polyols was studied by differential scanning calorimetry, and tensile testing was performed on the derived polyurethanes. The results were compared with those of polyurethanes obtained with fossil-based 1,4-butanediol polyester polyols. Surprisingly, it was found that a crystalline polyester was obtained when aliphatic long-chain diacids (>C₁₂ ) were used as the diacid building block. The low melting point of the C₁₂ diacid-based material all

SUBMITTER: Stadler BM 

PROVIDER: S-EPMC7027755 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature