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Inverse melting transition and evidence of three-dimensional cubatic structure in a block-copolymer micellar system
Abstract
Structural studies on aqueous solutions of PEO-PPO-PEO block copolymers show three phases as the temperature is varied. At low T, the tri-block units are dissolved Gaussian chains. As T is increased still more unimers aggregate in micelles, until a volume fraction of 0.52 is reached. The micelles then crystallize in a body-centered-cubic lattice. Upon the application of a small shear, the high-T polycrystalline phase abruptly transforms into a single crystal, characterized by only quasi-long-range order in bond length, but true long-range correlations in the bond angle.
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Citations
Cited by
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
Pedersen, J. S. (1997) · Advances in Colloid and Interface Science · doi:10.1016/s0001-8686(97)00312-6 · Cited by 1,653
Directing the self-assembly of block copolymers
Darling, S. B. (2007) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2007.05.004 · Cited by 1,019
Harada, A., & Kataoka, K. (2006) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2006.09.004 · Cited by 411
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
Metadata
- Authors
- Mortensen, K., Brown, W., & Nordén, B.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1992-04-13
- Volume
- 68
- Issue
- 15
- Pages
- 2340-2343
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W2080243932
- Cited by
- 269
- References
- 0
- FWCI
- 6.35
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Inverse melting transition and evidence of three-dimensional cubatic structure in a block-copolymer micellar system. https://app.cochat.ai/papers/10.1103/physrevlett.68.2340
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- Mortensen, K., Brown, W., & Nordén, B. (1992). Inverse melting transition and evidence of three-dimensional cubatic structure in a block-copolymer micellar system. Physical Review Letters. https://doi.org/10.1103/physrevlett.68.2340
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