二元Pluronic嵌段共聚物相互作用 I.PPO嵌段长度相近的P94/L92和F108/L92二元混合水溶液  

Interaction of Binary Pluronic Block Molecules I.Mixed Aqueous Solutions of P94/L92 and F108/L92 with Similar PPO Block Length

作　　者：赵剑曦[1] 陈晓东[1] 江琳沁[1] 

机构地区：[1]福州大学化学系,福建福州350002

出　　处：《日用化学品科学》2000年第S1期7-11,共5页Detergent & Cosmetics

基　　金：福建省自然科学基金!(B9810005);国家教委留学回国人员科研启动基金资助

摘　　要：以I2 作为探针 ,用可见光度方法测定不同浓度比例的P94/L92和F10 8/L92二元Pluronic嵌段共聚物水溶液的临界胶束浓度。实验结果表明 ,这些PPO嵌段长度相近的分子在全部浓度比例范围内都发生相互作用 ,生成了混合胶束。由于这些分子的PEO嵌段长度不等 ,随着具有较短PEO嵌段的L92分子加入 ,P94/L92和F10 8/L92混合胶束外壳的EO基团数减少 。Water-soluble poly(ethylene oxide)-block-poly(propylnen oxide)-block-poly-(ethylene oxide) (PEO-PPO-PEO) copolymers are nonionic macromolecular surface-active agents, available commercially as Pluronics. These copolymers are widely employed in the pharmaceutical industry as stablizers, emulsifiers etc. Recently, the micellization of these copolymers has been focused because of a strong interest in Pluronic micelles as drug-microcarriers in therapeutic creams and ointments. The results indicated that micelli...

关 键 词：Pluronic嵌段共聚物 相近长度PPO嵌段 相互作用 混合胶束 

分 类 号：O631[理学—高分子化学]