大豆磷脂缔合体系的相图及微观结构研究

THE STUDY OF PHASE DIAGRAM AND MICROSTRUCTURE OF PHOSPHATIDE SYSTEM

制作了天然表面活性剂大豆磷脂ＰＥ／醇（正丙醇、正丁醇、正戊醇、正己醇）／水三元相图和含不同油量的ＰＥ／正戊醇／油（正十六烷）／水拟三元相图，通过对相图进行分析，并根据相图进行热力学计算，得到了有关磷脂的许多有价值的信息．对磷脂／丁醇／油／水相态的研究表明ｐＨ值和盐度对磷脂体系的相态有影响．本文还以２Ｈ－ＮＭＲ方法及偏光显微镜研究了磷脂／水、磷脂／醇（正丙醇、正丁醇）／水体系形成的液晶的微观结构，证明磷脂体系除了可以形成层状液晶外，还可以形成其他结构的液晶．

Phase diagrams of natural surfactant phosphatide (PE)/alcohol(propanol,butanol,pentanol,hexanol)/H 2O system and pseudo diagrams of PE/pentanol/H 2O/oil systems contain various amount of oil were made in the paper.The study about the diagrams and the thermodynamic analysis according to the pseudo diagrams gave out very important informations about phosphatide.Study about the phase behavior of PE/butanol/H 2O/oil system shew that pH value and salinity can effect the phase behavior of the system. 2H NMR spectroscope and polarized light microscope were used to study the microstructure of the liquid crystal of PE/H 2O and PE/alcohol/H 2O systems,it was found in the paper that only lamella phase can be formed in PE/H 2O system,but various type of liquid crystal,such as cubic phase,lamella phase,and hexagonal phase were found in PE/alcohol/H 2O systems.