Reduction of epoxidized vegetable oils: A novel method to prepare bio-based polyols for polyurethanes

Chaoqun Zhang, Rui Ding, Michael R. Kessler

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

A novel method, epoxidation/reduction of vegetable oils, is developed to prepare bio-based polyols for the manufacture of polyurethanes (PUs). These polyols are synthesized from castor oil (CO), epoxidized soybean oil, and epoxidized linseed oil and their molecular structures are characterized. They are used to prepare a variety of PUs, and their thermomechanical properties are compared to those of PU made with petroleum-based polyol (P-450). It is shown that PUs made with polyols from soybean and linseed oil exhibit higher glass transition temperatures, tensile strength, and Young's modulus and PU made with polyol from CO exhibits higher elongation at break and toughness than PU made with P-450. However, PU made with P-450 displays better thermal resistance because of tri-ester structure and terminal functional groups. The method provides a versatile way to prepare bio-polyols from vegetable oils, and it is expected to partially or completely replace petroleum-based polyols in PUs manufacture. A novel method to produce bio-based polyols from vegetable oils is developed using an epoxidation/reduction route. Using castor oil, epoxidized soybean oil, and epoxidized linseed oil, a variety of polyols are synthesized and used to prepare polyurethanes (PUs) with variable properties. The thermomechanical behaviors of these versatile PUs are compared to those of PUs made with a petroleum-based polyol.

Original languageEnglish (US)
Pages (from-to)1068-1074
Number of pages7
JournalMacromolecular Rapid Communications
Volume35
Issue number11
DOIs
StatePublished - Jun 2014

Keywords

  • biopolymers
  • green monomer
  • mechanical properties
  • polyurethanes
  • vegetable oil

Fingerprint Dive into the research topics of 'Reduction of epoxidized vegetable oils: A novel method to prepare bio-based polyols for polyurethanes'. Together they form a unique fingerprint.

Cite this