Zheng, Lei published the artcileBio-based 1,5-Pentanediol as a Replacement for Petroleum-Derived 1,6-Hexanediol for Polyester Polyols, Coatings, and Adhesives, Synthetic Route of 111-29-5, the publication is ACS Sustainable Chemistry & Engineering, database is CAplus.
Amorphous and semi-crystalline polyester polyols based on a novel, low cost, bio-based 1,5-pentanediol (Bio-PDO) were synthesized and formulated into solvent-borne coatings and hot melt adhesives. Bio-PDO may provide a lower cost, more sustainable, and non-petroleum-based alternative to polyols based on 1,6-hexanediol (HDO). The polyester polyols were characterized for end group composition, monomer incorporation, and thermal transitions. Bio-PDO-based coatings exhibited performance, including hardness, flexibility, adhesion strength, and solvent resistance, similar to the coatings based on petroleum-derived HDO. Bio-PDO-based adhesives exhibited lower green strength (initial adhesion strength) and longer open time (workable time to bond substrates) than HDO-based adhesives. The effects of common bio-based impurities, including lactones and mono-alcs. (δ-valerolactone and tetrahydrofurfuryl alc. as examples of impurities), on polyester polyols were investigated. Hydroxyl functionalities of polyols were controlled by the excess diols in monomer feeds and were not impacted largely by the δ-valerolactone levels. High-level tetrahydrofurfuryl alc. terminated the polyester ends with unreactive functionality. Deleterious effects on polyol hydroxyl functionality are not expected at the low impurity levels (<2 weight %) found in leading bio-PDO processes.
ACS Sustainable Chemistry & Engineering published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C4H5F3N2O3S, Synthetic Route of 111-29-5.
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