Triblock copolymers copolymer solutions

Jeong B, Bae YH, Kim SW. In situ gelation of PEG-PLGA-PEG triblock copolymer aqueous solutions and degradation thereof. J Biomed Mater Res 2000 50 171-177. 

Figure 4 Phase diagram of PEG-PLGA-PEG (550-2810-550) triblock copolymer aqueous solution. Cross bar temperature where the formed gels become turbid. (From Ref. 50.)...

KOS Kostko, A.F., Harden, J.L., and McHugh, M.A., Dynamic light scattering study of concentrated triblock copolymer micellar solutions imder pressure. Macromolecules, 42, 5328, 2009. 

KUE Kuciikyavuz, S., Kiictikyavuz, Z., and Erdogan, G., Characterization of p-tert-butylstyrene-dimethylsiloxane triblock copolymers in solution. Polymer, 31, 379,... 

Jeong, B Bae, YH Kim, SW. Thermoreversible Gelation of PEG-PLGA-PEG Triblock Copolymer Aqueous Solutions. Macromolecules, 1999, 32, 7064-7069. 

Manneville S, Cohn A, Waton G, Schosseler F (2007) Wah slip, shear banding, and instability in the flow of a triblock copolymer micellar solution. Phys Rev E 75(6) 061502... 

MAA Maasen, H.-P., Yang, J.L., and Wegner, G., The structure of poly(ethylene oxide)-poly(dimethyl siloxane) triblock copolymers in solution, Makromol. Chem., Macromol. Symp., 39, 215, 1990. 

Yu G, Eisenberg A (1998) Multiple morphologies formed liom an amphiphilic ABC triblock copolymer in solution. Macromolecules 31 5546-5549... 

Jeong, B. M., Bae, Y. H., and Kim, S. W. 1999b. Thermoreversible gelation of PEG-PLGA-PEG triblock copolymer aqueous solutions. Macromolecules, 32 7064-9. 

Figure 1. Sol-gel transition of PEG-PLGA-PEG triblock copolymer aqueous solution. Cross bar indicates the temperature at which the gel becomes turbid. (Reproduced with permission from reference 13. Copyright 2000 Elsevier.)...

Yu, L., Zhang, H., Eting, J. A subtle end-group effect on macroscopic physical gelation of triblock copolymer aqueous solutions. Angew. Chem. Int. Ed. 45, 2232-2235 (2006)... 

Weiss et al. [75] have synthesized Na and Zn salt of sulfonated styrene(ethylene-co-butylene)-styrene triblock ionomer. The starting material is a hydrogenated triblock copolymer of styrene and butadiene with a rubber mid-block and PS end-blocks. After hydrogenation, the mid-block is converted to a random copolymer of ethylene and butylene. Ethyl sulfonate is used to sulfonate the block copolymer in 1,2-dichloroethane solution at 50°C using the procedure developed by Makowski et al. [76]. The sulfonic acid form of the functionalized polymer is recovered by steam stripping. The neutralization reaction is carried out in toluene-methanol solution using the appropriate metal hydroxide or acetate. 

Brown, W Schillen, K Hvidt, S, Triblock Copolymers in Aqueous Solution Studied by Static and Dynamic Light Scattering and Oscillatory Shear Measurements. Influence of Relative Block Sizes, Journal of Physical Chemistry 96, 038, 1992. 

Hadden, DA, Master of Science Thesis, Florida State University, Tallahassee, FL, 1999. Hadden, D Rill, RL McFadden, L Locke, BR, Oligonucleotide and Water Self-Diffusion in Pluronic Triblock Copolymer Gels and Solutions by Pulsed Field Gradient Nuclear Magnetic Resonance, Macromolecules 33, 4235, 2000. 

Hvidt, S Jorgensen, EB Brown, W Schillen, K, Micellization and Gelation of Aqueous Solutions of a Triblock Copolymer Studied by Rheological Techniques and Scanning Calorimetry, Journal of Physical Chemistry 98, 12320, 1994. 

Wanka, G Hoffman, H Ulbricht, W, Phase Diagrams and Aggregation Behavior of Poly (oxyethylene)-Poly(oxypropylene)-Poly(exyethylene) Triblock copolymers in Aqueous Solutions, Macromolecules 27, 4145, 1994. 

Monofunctional and difunctional xanthates, shown in Scheme 30, were employed as chain transfer agents in the synthesis of block and triblock copolymers of acrylic acid, AA and acrylamide, AAm PAA-fr-PAAm, PAAm-fr-PAA-fo-PAAm and P(AA-sfaf-AAm)-fr-PAAm [81]. The polymerizations were conducted in aqueous solutions at 70 °C with 4,4 -azobis(4-cyanopentanoic acid) as the initiator. The yields were almost quantitative,... 

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