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Science 27 February 1987:
Vol. 235. no. 4792, pp. 1015 - 1022
DOI: 10.1126/science.3823866
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Articles

Science, Vol 235, Issue 4792, 1015-1022
Copyright © 1987 by American Association for the Advancement of Science

articles

Hierarchical structure in polymeric materials

E Baer, A Hiltner, and HD Keith

The diversity of monomers available for synthesis of high polymers makes it possible to prepare a wide variety of long-chain macromolecular compounds. It is instructive to consider a hierarchical organization of structure in polymers at four successive levels--the molecular, nano-, micro-, and macrolevels--and to examine how interactions at and between these various levels of structure have important and often quite specific influences. Examples are drawn from semicrystalline polymers with flexible chains, liquid-crystalline polymers composed of rigid macromolecules, and amorphous polymers. Structural hierarchies in biocomposite systems are also discussed, particularly in soft connective tissues such as tendon and intervertebral disk.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Confined Crystallization of Polyethylene Oxide in Nanolayer Assemblies.
H. Wang, J. K. Keum, A. Hiltner, E. Baer, B. Freeman, A. Rozanski, and A. Galeski (2009)
Science 323, 757-760
   Abstract »    Full Text »    PDF »
Nano measurements with micro-devices: mechanical properties of hydrated collagen fibrils.
S.J Eppell, B.N Smith, H Kahn, and R Ballarini (2006)
J R Soc Interface 3, 117-121
   Abstract »    Full Text »    PDF »
Alpha-Decay--Induced Fracturing in Zircon: The Transition from the Crystalline to the Metamict State.
B. C. Chakoumakos, B. C. CHAKOUMAKOS, T. MURAKAMI, G. R. LUMPKIN, and R. C. EWING (1987)
Science 236, 1556-1559
   Abstract »    PDF »


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