首页|Quasielastic Neutron Scattering Study on Polymorphism of Glycerol Deuterated Triacylglycerols: Comparison with Saturated, Trans-unsaturated and Cis-unsaturated Triacylglycerols
Quasielastic Neutron Scattering Study on Polymorphism of Glycerol Deuterated Triacylglycerols: Comparison with Saturated, Trans-unsaturated and Cis-unsaturated Triacylglycerols
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NSTL
Chemical Soc Japan
The relationship between the polymorphism and dynamic properties of acyl chains in triacylglycerols (TAGs) was studied using incoherent quasielastic neutron scattering (IQENS). The influence of cis- and trans-unsaturation was also investigated by comparing the following monoacid TAGs, tristearin, trielaidin, triolein, and trierucin. Glycerol-deuterated TAG samples were employed for the IQENS measurements to reduce the incoherent scattering of the glycerol backbone. Irrespective of the difference of acyl chains, these TAGs showed similar dynamical properties under the same temperature and polymorph. The molecular motion in the beta phase with tightly-packed acyl chains showed the characteristics of a harmonic oscillator up to 300 K. In contrast, the a phase with loosely-packed acyl chains started diffusive molecular motions around 190 K.
NSTL
Chemical Soc Japan
