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Well-Ordered Microdomain Structures in Polydisperse Poly(styrene)−Poly(acrylic acid) Diblock Copolymers from Controlled Radical Polymerization
Abstract
To investigate whether diblock copolymers with substantial distributions of molecular weight and composition can self-assemble into highly regular microdomain structures, we examine the morphologies of polystyrene- b -poly(acrylic acid), diblock copolymers (PS−PAA) synthesized by controlled radical polymerization in emulsion. Despite diblock polydispersity indices of ca. 2, solvent-cast films of these diblocks, as well as their blends with PS homopolymer of low molecular weight, exhibit well-ordered lamellar or hexagonally packed cylindrical morphologies in the midrange of composition, as shown by small-angle X-ray scattering and transmission electron microscopy. In several specimens, well-ordered regions of lamellae and cylinders appear to coexist. Films of very asymmetric diblocks or blends exhibit spherical microdomains without lattice order.
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Citations
Cites
The Physics of Block Copolymers
Hamley, I. W. (1998) · doi:10.1093/oso/9780198502180.001.0001 · Cited by 1,913
Cited by
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
Polydispersity and block copolymer self-assembly
Lynd, N. A., Meuler, A. J., & Hillmyer, M. A. (2008) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2008.07.003 · Cited by 485
Polymeric Surfactants: Synthesis, Properties, and Links to Applications
Raffa, P., Wever, D. A. Z., Picchioni, F., & Broekhuis, A. A. (2015) · Chemical Reviews · doi:10.1021/cr500129h · Cited by 389
Influence of Polydispersity on the Self-Assembly of Diblock Copolymers
Lynd, N. A., & Hillmyer, M. A. (2005) · Macromolecules · doi:10.1021/ma051025r · Cited by 309
New polymeric architectures with (meth)acrylic acid segments
Mori, H., & Müller, A. H. E. (2003) · Progress in Polymer Science · doi:10.1016/s0079-6700(03)00076-5 · Cited by 277
Metadata
- Authors
- Bendejacq, D., Ponsinet, V., Joanicot, M., Loo, Y.-L., & Register, R. A.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-07-10
- Volume
- 35
- Issue
- 17
- Pages
- 6645-6649
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2048419315
- Cited by
- 160
- References
- 1
- FWCI
- 4.91
- Type
- journal article
- Language
- en
- Open access
- closed
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