Polyurethanes based on renewable polyols from bioderived lactones

Senthil A. Gurusamy-Thangavelu, Susanna J. Emond, Aman Kulshrestha, Marc A. Hillmyer, Christopher W. MacOsko, William B. Tolman, Thomas R. Hoye

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28 Scopus citations


Ring opening transesterification polymerization of lactones derived from menthone and carvomenthone was used to synthesize polyols for polyurethane film formulations. The polyols were synthesized at 140°C using tin(ii) octoate as catalyst, diethanolamine as trifunctional initiator, and with ratios of lactone:initiator of 9:1 or 18:1. Polyol structural features were deduced by comparison of NMR spectral data with those of simple model amide/esters of the initiator. Films were formulated from the renewable polyols, diphenylmethane diisocyanate [or poly(diphenylmethane diisocyanate)], and diethylene glycol. Thermal and mechanical properties of these polyurethane films were measured, demonstrating their potential utility as biobased thermosets for rigid or flexible foams.

Original languageEnglish (US)
Pages (from-to)2941-2948
Number of pages8
JournalPolymer Chemistry
Issue number10
StatePublished - Oct 2012

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