The paper discusses the features of molecular motion mechanisms in crystals of triacylglycerols. Topological solitons in tristearin crystals nucleate on methyl groups and propagate along the molecule, reorienting the ester group. The motion of these polar ester groups leads to a relaxation process initiation. As soon as topological solitons reach a steric hindrance, they reflect from it. In triolein molecules, topological solitons that originate on methyl groups do not reorient the ester group, as their motion is blocked by a double bond in the aliphatic chain. As a result, the intensity of the relaxation process is low. In triricinolein molecules topological solitons originating on methyl groups also fail to reorient ester groups due to the double bond in the aliphatic chain that acts as an obstacle. However, they reorient the hydroxyl group in front of the double bond. The relaxation process in triricinolein is much more intense than in triolein.

本文讨论了三酰基甘油晶体中分子运动机理的特征。三硬脂精晶体中的拓扑孤子在甲基上成核并沿着分子传播，从而重新定位酯基。这些极性酯基的运动导致松弛过程的开始。只要拓扑孤子达到位阻，它们就会从中反射出来。在三油精分子中，起源于甲基的拓扑孤子不会重新定向酯基，因为它们的运动被脂族链中的双键所阻断。结果，松弛过程的强度低。在三蓖麻油酸酯分子中，由于甲基的拓扑孤子也无法重新定位酯基，这是由于脂族链中的双键成为障碍。然而，它们使双键前面的羟基重新定向。三油精中的松弛过程比三油精中的松弛过程强烈得多。