MICELLIZATION OF DIBLOCK COPOLY(OXYETHYLENE OXYBUTYLENE) IN AQUEOUS-SOLUTION
MICELLIZATION OF DIBLOCK COPOLY(OXYETHYLENE OXYBUTYLENE) IN AQUEOUS-SOLUTION
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DOI：
10.1039/ft9938901235
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发表时间：
1993-04-21
期刊：
影响因子：
--
通讯作者：
BOOTH, C
中科院分区：
文献类型：
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作者：
BEDELLS, AD;ARAFEH, RM;BOOTH, C
采用顺序阴离子共聚法合成了六种二嵌段共聚（氧化丁烯/氧化丁烯）（E92 B7，E50 B13，E49 B8，E50 B4，E24 B10和E27 B5，其中E为氧化丁烯，B为氧化丁烯），并研究了它们在水溶液中的胶束化行为。表面张力，静态和动态光散射和凝胶渗透色谱技术被用来研究在20至50 ° C的温度范围内的解决方案，在一个宽的浓度范围从稀释到100克dm-3。胶束的性质报告的临界胶束浓度，胶束的摩尔质量和半径。本文讨论了E（m）B（n）二嵌段共聚物的胶束化热力学，并与相关的三嵌段共聚物（E（m）B（n）E（m）和E（m）P（n）E（m），其中P代表氧丙烯）的胶束化热力学进行了比较。
Six diblock copoly(oxybutylene/oxyethylene)s (E92B7, E50B13, E49B8, E50B4, E24B10 and E27B5, where E represents oxyethylene and B represents oxybutylene) have been prepared by sequential anionic copolymerisation and their micellisation in aqueous solution investigated. Surface tension, static and dynamic light scattering and gel permeation chromatography techniques were used to study solutions at temperatures in the range 20 to 50-degrees-C over a wide concentration range from dilute to 100 g dm-3. The micellar properties reported are critical micelle concentrations, micellar molar masses and radii. The thermodynamics of micellisation of E(m)B(n) diblock copolymers is discussed in relation to that of related triblock copolymers (E(m)B(n)E(m) and E(m)P(n)E(m), where P represents oxypropylene).