By Leo Mandelkern
Mandelkern L. Crystallization of polymers (CUP Press, 2002)(ISBN 0511061064)(449s)
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The crystallography of aperiodic crystals employs many options which are sometimes utilized to periodic crystals. the current textual content has been written less than the belief that the reader understands ideas like house staff symmetry, Bragg reflections and vector calculus. This assumption is prompted through the popularity that readers drawn to aperiodic crystals will usually have a history within the sturdy nation sciences, and by way of the truth that many books can be found that take care of the crystallography of tronslational symmetric buildings at either introductory and complex degrees.
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Additional resources for Crystallization of polymers. Volume 1, Equilibrium concepts
17. Fischer, E. W. and M. Dettenmaier, J. Non-Crystalline Solids, 31, 181 (1978). 18. Wignall, G. , in Physical Properties of Polymers, Second Edition, J. E. , American Chemical Society (1993) pp. 313ff. 19. Graessley, W. , J. Polym. : Polym. , 18, 27 (1980). 20. Fetters, L. , D. J. Lohse and R. H. Colby, in Physical Properties of Polymers Handbook, J. E. , American Institute of Physics (1996) p. 335. 21. Fetters, L. , D. J. Lohse and W. W. Graessley, J. Polym. : Pt. B: Polym. , 37, 1023 (1999).
From a macroscopic point of view there is, on an average, no preferred orientation of the crystallographic directions. Different kinds of preferred orientations can also be developed with crystalline polymers. The native state of many macromolecules of biological interest, such as the ﬁbrous proteins, is characterized by a preferred crystalline orientation. Similar conditions can also be obtained in other polymers by deformation of the specimen 16 Introduction Fig. 6 Wide-angle x-ray diffraction pattern of linear polyethylene crystallized by cooling.
10 yields similar results for these parameters. The negative value of He signiﬁes a decrease in the magnitude of the intermolecular crystal energy by the end-group layer. The positive value for Se has been attributed to relaxation of the precise positioning of the terminal group in the lattice. 40 Fusion of homopolymers Fig. 11 Melting temperatures of n-alkanes (up to C100 ) as a function of chain length. (1) Another way to assess the validity of the analysis is to directly calculate the melting points of the n-alkanes from Eq.
Crystallization of polymers. Volume 1, Equilibrium concepts by Leo Mandelkern