Polymer Crystallization: Obervations, Concepts and Interpretations

Front Cover
GŁnter Reiter, Jens-Uwe Sommer
Springer, Jan 11, 2008 - Science - 386 pages
The classical view on polymer crystallization basically focused on the expla- tion of a few macroscopically observable parameters like the thickness of the resulting lamellar structure and the corresponding growth rates. However, the emerging paradigm for the description of chain crystals is too simple and cannot account for the complex non-equilibrium processes responsible for structure f- mation on various levels, ranging from the nanometer up to the millimeter scale. This complexity detected by several novel experimental results led to a renewed interest in this ”old” topic of polymer crystallization. These new ?ndings c- cern the early stages of the crystallization process, crystal formation in con?ned geometries like ultra-thin ?lms and the competition between (micro)phase s- aration and crystallization in copolymers and blends. In particular, high spatial resolution techniques such as atomic force microscopy provided deeper insight into the molecular organization of crystallizable polymers. Computer simu- tions based on microscopic processes were used to improve our understanding of how polymer crystals are nucleated and how they grow. New ideas emerged about possible multistage pathways which are followed during the formation of polymer lamellae. The importance and the consequences of the non-equilibrium character of polymer crystals got signi?cantly more attention. Links and ana- gies to growth phenomena and pattern formation in general are being developed. However, these ideas are still subject of intensive and controversial discussions.
 

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Contents

Stable Metastable and Transient States of a Phase
28
References
46
References
62
References
80
References
96
Atomic Force Microscopy Studies
98
8
131
References
151
13
238
in Ultrathin Micropatterned Films
245
Vitrification and Devitrification of the Rigid Amorphous
252
References
272
DSC Approach
297
References
310
17
312
References
324

References
176
Structure Formation and ChainFolding
177
References
195
References
207
12
208
Competition Between Crystallization and MixingDemixing
229
References
341
References
364
20
366
References
377
21
378
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