Abstract
The inverse gas chromatography (IGC) method was used to characterize the hydrogen bond energies of chitin‐methanol and chitin‐ethanol. Surface Lewis acid‐base properties of the chitin were determined at the same time. Six solvents, trichloromethane, acetone, ether, tetrahydrofuran, methanol, and ethanol were used as polar probes for the IGC measuration. The hydrogen bond energies of chitin‐methanol and chitin‐ethanol were 23.3 and 21.3 kJ/mol, respectively. Because the linear relation of the plot of −ΔHa s/AN* versus DN/AN* (DN and AN* are the Gutmann's donor and modified acceptor numbers of solvents) for the six probes was perfect, it can be concluded that the hydrogen bonds of chitin‐alcohols belong to Lewis acid‐base interactions. The hydrogen bonds were moderate hydrogen bonds.
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