Phase behavior of the Pluronic P103/water system in the dilute and semi- dilute regimes

被引:47
作者
Alvarez-Ramirez, J. G. [1 ]
Fernandez, V. V. A. [1 ]
Macias, E. R. [1 ]
Rharbi, Y. [2 ]
Taboada, P. [3 ]
Gamez-Corrales, R. [4 ]
Puig, J. E. [1 ]
Soltero, J. F. A. [1 ,2 ]
机构
[1] Univ Guadalajara, Dept Ingn Quim, Guadalajara 44430, Jalisco, Mexico
[2] Univ Grenoble 1, CNRS, Inst Natl Polytech Grenoble, Lab Rheol,UMR 5520, F-38041 Grenoble 9, France
[3] Univ Santiago Compostela, Fac Fis, Dept Fis Mat Condensada, Grp Fis Coloides & Polimeros, Santiago De Compostela, Spain
[4] Univ Sonora, Dept Fis, Hermosillo 83000, Sonora, Mexico
关键词
Phase diagram; Density; Sound velocity; Rheometry; Polymer-like micelles; OXIDE) TRIBLOCK COPOLYMERS; DYNAMIC LIGHT-SCATTERING; AQUEOUS-SOLUTIONS; BLOCK-COPOLYMER; AGGREGATION BEHAVIOR; MICELLIZATION; TEMPERATURE; GELATION; MICELLE; THERMODYNAMICS;
D O I
10.1016/j.jcis.2009.01.068
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The detailed temperature-composition phase diagram of the P103/water system in the dilute and semi-dilute regions is reported here using density and ultrasound velocity measurements, differential scanning calorimetry (DSC), rheometry and dynamic (DLS) and static light scattering (SLS). These techniques allow a precise determination of the critical micellar temperature (CMT), the sphere-to-rod micellar transition temperature (GMT) and the cloud point temperature (CPT) as a function of concentration. DLS and SLS measurements were employed to gain information on unimers and aggregate sizes and on the transition from spherical-to-rod micelles. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:655 / 662
页数:8
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