GELATION AND MICELLIZATION OF AQUEOUS-SOLUTIONS OF A TRIBLOCK COPOLYMER

被引：13

作者：

JORGENSEN, EB

JENSEN, JH

HVIDT, S

机构：

[1] ROSKILDE UNIV CTR,DEPT CHEM,DK-4000 ROSKILDE,DENMARK

[2] UNIV MARYLAND,DEPT PHYS,COLLEGE PK,MD 20742

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1994年 / 172卷

关键词：

D O I：

10.1016/0022-3093(94)90608-4

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The temperature-dependent properties of aqueous solutions of a triblock copolymer of ethylene oxide (EO) and propylene oxide (PO), with composition EO(21)PO(47)EO(21), have been measured by use of viscoelastic techniques and scanning calorimetry. Unimer-micelle equilibrium exists at low temperatures and two sol to gel transitions are observed with increasing temperatures. The elastic moduli of the gel states are attributed to increasing exposure of hydrophobic groups to water with strain.

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页码：972 / 977

页数：6

相关论文

共 11 条

[1] AGGREGATION BEHAVIOR OF PLURONIC-P-94 IN WATER [J].

BAHADUR, P ;

PANDYA, K .

LANGMUIR, 1992, 8 (11) :2666-2670

[2] MICELLE AND GEL FORMATION IN A POLY(ETHYLENE OXIDE) POLY(PROPYLENE OXIDE) POLY(ETHYLENE OXIDE) TRIBLOCK COPOLYMER IN WATER SOLUTION - DYNAMIC AND STATIC LIGHT-SCATTERING AND OSCILLATORY SHEAR MEASUREMENTS [J].

BROWN, W ;

SCHILLEN, K ;

ALMGREN, M ;

HVIDT, S ;

BAHADUR, P .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (04) :1850-1858

[3] TRIBLOCK COPOLYMERS IN AQUEOUS-SOLUTION STUDIED BY STATIC AND DYNAMIC LIGHT-SCATTERING AND OSCILLATORY SHEAR MEASUREMENTS - INFLUENCE OF RELATIVE BLOCK SIZES [J].

BROWN, W ;

SCHILLEN, K ;

HVIDT, S .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (14) :6038-6044

[4]

EDWARDS J, 1930, TREATISE INTEGRAL CA, P843

[5] STRUCTURAL STUDY ON THE MICELLE FORMATION OF POLY(ETHYLENE OXIDE) POLY(PROPYLENE OXIDE) POLY(ETHYLENE OXIDE) TRIBLOCK COPOLYMER IN AQUEOUS-SOLUTION [J].

MORTENSEN, K ;

PEDERSEN, JS .

MACROMOLECULES, 1993, 26 (04) :805-812

[6] PHASE-BEHAVIOR OF POLY(ETHYLENE OXIDE)-POLY(PROPYLENE OXIDE)-POLY(ETHYLENE OXIDE) TRIBLOCK-COPOLYMER DISSOLVED IN WATER [J].

MORTENSEN, K .

EUROPHYSICS LETTERS, 1992, 19 (07) :599-604

[7] INVERSE MELTING TRANSITION AND EVIDENCE OF 3-DIMENSIONAL CUBATIC STRUCTURE IN A BLOCK-COPOLYMER MICELLAR SYSTEM [J].

MORTENSEN, K ;

BROWN, W ;

NORDEN, B .

PHYSICAL REVIEW LETTERS, 1992, 68 (15) :2340-2343

[8]

Schick M. J., 1967, NONIONIC SURFACTANTS

[9] THERMODYNAMIC STUDIES ON THE GEL SOL TRANSITION OF SOME PLURONIC POLYOLS [J].

VADNERE, M ;

AMIDON, G ;

LINDENBAUM, S ;

HASLAM, JL .

INTERNATIONAL JOURNAL OF PHARMACEUTICS, 1984, 22 (2-3) :207-218

[10] THE AGGREGATION BEHAVIOR OF POLY-(OXYETHYLENE)-POLY-(OXYPROPYLENE)-POLY-(OXYETHYLENE)-BLOCK-COPOLYMERS IN AQUEOUS-SOLUTION [J].

WANKA, G ;

HOFFMANN, H ;

ULBRICHT, W .

COLLOID AND POLYMER SCIENCE, 1990, 268 (02) :101-117