ie404316v_si_001.pdf (88.32 kB)
Modeling of Toluene Sulfonic Acid Catalyzed Oxide Addition Reaction for Soy-Based Polyol
journal contribution
posted on 2015-01-14, 00:00 authored by Rima Ghoreishi, Galen J. SuppesPolyol oligomers formed from reactions
of mono-, di-, and triethylene
glycols with epoxidized soybean oil were synthesized and the reaction
conversions were modeled. The data verified the effectiveness of a
model that is based on the simultaneous solution of eight ordinary
differential equations. In addition, the data demonstrated that di-
and triethylene glycols produced lower viscosity oligomers than monoethylene
glycol. Since the model is fundamentally based, it provides insight
into the reaction mechanisms and allows for simulation of reaction
conditions with reasonable extrapolation. Within the accuracy of the
data, the reaction rate coefficients for all alcohol and epoxy moieties
were equal, independent of the molecule to which they were attachedreaction
rates varied based only on temperature and dilution of reacting moieties.
The model provides an effective means to simulating concentration,
viscosity, and temperature profiles including estimates of degrees
of polymerization, which are dependent on a parameter related to inter
versus intra-oligomerization.