The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Epitaxial Crystallization and AFM Investigation of a Frustrated Polymer Structure: Isotactic Poly(propylene), β Phase
Abstract
The metastable phase of isotactic polypropylene (βiPP) is crystallized epitaxially on two specific nucleating agents: γ-quinacridone and dicyclohexylterephthalamide (DCHT). The resulting thin films are investigated by electron microscopy and atomic force microscopy. Epitaxial crystallization yields a biaxially oriented sample of βiPP, an orientation which cannot be achieved by mechanical means due to the β → α phase transformation on stretching. Electron diffraction indicates that the βiPP (110) plane is the contact face involved in both epitaxies. AFM investigation with methyl group resolution reveals a lateral periodicity of 19 Å in that (110) contact face, which corresponds to the distance between three chains and is a trademark indicator of the frustrated packing of βiPP. AFM further indicates some variability of the surface pattern, suggesting that two different frustrated structures may coexist in the surface layer; this, in turn, suggests some type of surface reconstruction. Structural requirements that efficient βiPP nucleating agents must meet are analyzed.
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Cites
Crystalline forms of isotactic polypropylene
Jones, A., Aizlewood, J. M., & Beckett, D. R. (1964) · Die Makromolekulare Chemie · doi:10.1002/macp.1964.020750113 · Cited by 1,509
Structure and morphology of poly(propylenes): a molecular analysis
Lotz, B., Wittmann, J. C., & Lovinger, A. J. (1996) · Polymer · doi:10.1016/0032-3861(96)00370-9 · Cited by 611
Self-citationPolymorphism in isotactic polypropylene
Brückner, S., Meille, S. V., Petraccone, V., & Pirozzi, B. (1991) · Progress in Polymer Science · doi:10.1016/0079-6700(91)90023-e · Cited by 506
Epitaxial crystallization of polymers on organic and polymeric substrates
Wittmann, J. C., & Lotz, B. (1990) · Progress in Polymer Science · doi:10.1016/0079-6700(90)90025-v · Cited by 480
Self-citationPolypropylene: Structure, Blends and Composites
Karger-Kocsis, J. (1994) · Polymers and Polymer Composites · doi:10.1177/147823919400200509 · Cited by 427
Evidence for a Second Crystal Form of Polypropylene
Keith, H. D., Padden, F. J., Walter, N. M., & Wyckoff, H. W. (1959) · Journal of Applied Physics · doi:10.1063/1.1734986 · Cited by 367
Structure of .beta.-Isotactic Polypropylene: A Long-Standing Structural Puzzle
Meille, S. V., Ferro, D. R., Brueckner, S., Lovinger, A. J., & Padden, F. J. (1994) · Macromolecules · doi:10.1021/ma00087a034 · Cited by 334
Einfluß der kristallstruktur und der überstruktur auf einige eigenschaften von polypropylen
Leugering, V. H. J. (1967) · Die Makromolekulare Chemie · doi:10.1002/macp.1967.021090118 · Cited by 212
X‐ray structure determination of isotactic poly(2‐vinylpyridine)
Puterman, M., Kolpak, F. J., Blackwell, J., & Lando, J. B. (1977) · Journal of Polymer Science Polymer Physics Edition · doi:10.1002/pol.1977.180150505 · Cited by 29
Cited by
Cocca, M., Androsch, R., Righetti, M. C., Malinconico, M., & Di Lorenzo, M. L. (2014) · Journal of Molecular Structure · doi:10.1016/j.molstruc.2014.02.038 · Cited by 92
Fractionated crystallization of α-and β-nucleated polypropylene droplets
Langhe, D. S., Keum, J. K., Hiltner, A., & Baer, E. (2011) · Journal of Polymer Science Part B Polymer Physics · doi:10.1002/polb.22162 · Cited by 31
Metadata
- Authors
- Stocker, W., Schumacher, M., Graff, S., Thierry, A., Wittmann, J.-C., & Lotz, B.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 1998-01-14
- Volume
- 31
- Issue
- 3
- Pages
- 807-814
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2077732073
- Cited by
- 261
- References
- 9
- FWCI
- 6.17
- Type
- journal article
- Language
- en
- Open access
- closed
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