The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.
Structure and Rheology Studies of Poly(oxyethylene−oxypropylene−oxyethylene) Aqueous Solution
Abstract
Small-angle neutron scattering (SANS) and rheometry were used to investigate the supramolecular structure formed by a poly(oxyethylene−oxypropylene−oxyethylene) (PEO 100 PPO 65 PEO 100, Pluronic F127) copolymer in aqueous solution over a temperature range of 10−75 °C and a concentration range of 10−20 wt %. At copolymer concentrations of less than 12.5% the solutions are Newtonian fluids. Gels with an ordered structure (cubic packing of spherical micelles) are observed over a well-defined temperature window when the copolymer concentrations are greater than 17 wt %. The SANS results show that the aggregation number of the micelles is independent of temperature and concentration. Low-yield stresses, very high zero shear viscosities (∼10 6 P), and shear thinning are the major rheological characteristics of the gels. Near, but outside, the gel phase boundary the solutions are non-Newtonian (shear thinning). However, SANS shows these solutions contain domains having the same structure as that in the gel phase. The temperature window for ordered structures and non-Newtonian behavior becomes wider with increasing copolymer concentration. The degree of overlap of the micellar shells increases with increasing copolymer concentration at a given temperature and reaches a maximum at ∼40 °C at a fixed polymer concentration. The yield stress is due to repulsive interactions of PEO chains in the overlapped micellar shell. On the basis of SANS and rheology results, the proposed mechanism of gelation is that it involves repulsive interactions among close-packed spherical micelles, rather than aggregation or transitions in micelle morphology to rods or lamellae.
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Cites
Alexandridis, P., & Alan Hatton, T. (1995) · Colloids and Surfaces A: Physicochemical and Engineering Aspects · doi:10.1016/0927-7757(94)03028-x · Cited by 1,920
Alexandridis, P., Holzwarth, J. F., & Hatton, T. A. (1994) · Macromolecules · doi:10.1021/ma00087a009 · Cited by 1,862
Wanka, G., Hoffmann, H., & Ulbricht, W. (1994) · Macromolecules · doi:10.1021/ma00093a016 · Cited by 1,496
Mortensen, K., & Pedersen, J. S. (1993) · Macromolecules · doi:10.1021/ma00056a035 · Cited by 721
Self-assembly in aqueous block copolymer solutions
Malmsten, M., & Lindman, B. (1992) · Macromolecules · doi:10.1021/ma00046a049 · Cited by 514
Wanka, G., Hoffmann, H., & Ulbricht, W. (1990) · Colloid & Polymer Science · doi:10.1007/bf01513189 · Cited by 479
Almgren, M., Brown, W., & Hvidt, S. (1995) · Colloid & Polymer Science · doi:10.1007/bf00655668 · Cited by 446
Structure and Dynamics of Block Copolymer Colloids
Chu, B. (1995) · Langmuir · doi:10.1021/la00002a009 · Cited by 402
Brown, W., Schillen, K., Almgren, M., Hvidt, S., & Bahadur, P. (1991) · The Journal of Physical Chemistry · doi:10.1021/j100157a064 · Cited by 365
Zhou, Z., & Chu, B. (1988) · Journal of Colloid and Interface Science · doi:10.1016/0021-9797(88)90111-7 · Cited by 340
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Wang, S., Zheng, H., Zhou, L., Cheng, F., Liu, Z., Zhang, H., Wang, L., & Zhang, Q. (2020) · Nano Letters · doi:10.1021/acs.nanolett.0c01371 · Cited by 573
Alexandridis, P., Olsson, U., & Lindman, B. (1998) · Langmuir · doi:10.1021/la971117c · Cited by 538
Poly(ethylene oxide)/poly(propylene oxide) block copolymer surfactants
Alexandridis, P. (1997) · Current Opinion in Colloid & Interface Science · doi:10.1016/s1359-0294(97)80095-7 · Cited by 351
Basak, R., & Bandyopadhyay, R. (2013) · Langmuir · doi:10.1021/la304836e · Cited by 314
Shriky, B., Kelly, A., Isreb, M., Babenko, M., Mahmoudi, N., Rogers, S., Shebanova, O., Snow, T., & Gough, T. (2020) · Journal of Colloid and Interface Science · doi:10.1016/j.jcis.2019.12.096 · Cited by 299
Pluronic F127 as a Cell Encapsulation Material: Utilization of Membrane-Stabilizing Agents
Khattak, S. F., Bhatia, S. R., & Roberts, S. C. (2005) · Tissue Engineering · doi:10.1089/ten.2005.11.974 · Cited by 254
Nerger, B. A., Brun, P.-T., & Nelson, C. M. (2019) · Soft Matter · doi:10.1039/c8sm02605j · Cited by 111
Mucoadhesive acrylated block copolymers micelles for the delivery of hydrophobic drugs
Eshel-Green, T., & Bianco-Peled, H. (2016) · Colloids and Surfaces B Biointerfaces · doi:10.1016/j.colsurfb.2015.11.044 · Cited by 57
Thompson, A. L., Mensah, L. M., & Love, B. J. (2019) · Soft Matter · doi:10.1039/c9sm00071b · Cited by 7
Metadata
- Authors
- Prud'homme, R. K., Wu, G., & Schneider, D. K.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-01-01
- Volume
- 12
- Issue
- 20
- Pages
- 4651-4659
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2093649635
- Cited by
- 301
- References
- 24
- FWCI
- 5.09
- Type
- journal article
- Language
- en
- Open access
- closed
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