Thomas J. Nelson, Lindsey Bultema, Neal Eidenschink, Dean C. Webster*
Journal of Renewable Materials, Vol.1, No.2, pp. 141-153, 2013, DOI:10.7569/JRM.2013.634113
Abstract Bio-based polyols with high functionality were successfully synthesized by ring-opening epoxidized sucrose
esters of soybean oil with methanol under acidic conditions, and were subsequently formulated with blocked
isocyanates to form one package polyurethanes (1KPU). The bio-based polyols were characterized by gel
permeation chromatography (GPC), Fourier transform infrared (FTIR) spectroscopy, proton nuclear magnetic
resonance (1
H-NMR) spectroscopy, and Brookfi eld viscosity. Bio-based coatings were prepared by formulating
the polyols with blocked polyisocyanates based on isophorone diisocyanate (IPDI) and hexamethylene
diisocyanate (HDI). Two types of bio-based polyols were synthesized and the ratio of NCO:OH functional
groups was varied to explore the effect… More >
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