氰乙基醋酸纤维素反渗透膜铸膜溶液的研究

STUDY ON TERNARY SOLUTION OF CYANOETHYL ACETYL CELLULOSE-ACETONE-ADDITIVE

本文采用IR、粘度测量、结构分析等方法研究了氰乙基醋酸纤维素—丙酮—添加剂三元溶液中添加剂(磷酸和甲酰胺)与氰乙基醋酸纤维素相互作用的形式。结果表明,添加剂与氰乙基醋酸纤维素产生氢键和亲核作用,影响大分子的聚集状态和形态结构,添加剂与丙酮的相容性越差,则其对溶液性质的影响就越显著。

The influence of additive on the properties of cyanoethyl acetyl cellulose(CECA)-acetone solution was studied with viscosity and IR analysis.It wasfound that the additive (formamide and phosphoric acid) could form hydrogenbond and/or nucleophilic interaction with CECA.The morphologicalstructure and the interaction between CECA molecules were thus stronglyaffected by additives.The poorer the compatibility between an additiveand acetone,the larger the influence of the additive on the solution.