马来酸酐改性蔗糖酯的制备及性能

Synthesis and Properties of Anionic Modified Sucrose Stearate by Maleic Anhydride

摘要:

为了克服蔗糖酯的水溶性差和有盐与酸性条件下乳化性能差的缺陷，本文采用马来酸酐对硬脂酸蔗糖酯进行改性，在硬脂酸蔗糖酯分子中引入羧基，设计合成了阴离子-非离子两性表面活性剂马来酸硬脂酸蔗糖酯（Sucrose stearate- maleate, MSS）。通过1H NMR和ESI-MS分析发现产品结构正确。与硬脂酸蔗糖酯相比，MSS具有优良的水溶性。在酸性和有盐条件下，MSS的乳化性能较硬脂酸蔗糖酯得到了显著提高。同时发现，MSS还具有优异的硬水稳定性（5级）。

Abstract:

Sucrose stearate- maleate (Sucrose stearate- maleate, MSS) containing anion groups were designed and prepared by sucrose stearate (SSE) with maleic anhydride, to overcome the shortcomings of sucrose esters such as low solubility and, which inhibits its emulsifying properties, particularly in the acidic region and in the presence of salt. The structure of the products were correct by 1H NMR and ESI-MS. The results indicated that anionic modified MSS exhibited remarkably higher solubility and emulsifying properties than SE, especially in the acidic region and in the presence of NaCl, and MSS had excellent stability in hard water (5 level).