Download e-book for iPad: Interphases and Mesophases in Polymer Crystallization II by Giuseppe Allegra, A. Abe, Auriemma, S. Bracco, A. Comotti,

Read or Download Interphases and Mesophases in Polymer Crystallization II (Advances in Polymer Science) (v. 2) PDF

Similar crystallography books

Download e-book for kindle: Incommensurate Crystallography by Sander van Smaalen

The crystallography of aperiodic crystals employs many suggestions which are repeatedly utilized to periodic crystals. the current textual content has been written less than the belief that the reader understands strategies like area crew symmetry, Bragg reflections and vector calculus. This assumption is encouraged by way of the popularity that readers attracted to aperiodic crystals will usually have a history within the stable kingdom sciences, and by means of the truth that many books can be found that care for the crystallography of tronslational symmetric buildings at either introductory and complicated degrees.

New PDF release: Powder Diffraction: Theory and Practice

''This e-book presents a good evaluate and masses element of the state-of the-art in powder diffraction tools. '' (Chemistry international. 2008. 5(11), p. p. sixty three) This publication offers a large review of, and advent to, cutting-edge tools and purposes of powder diffraction in learn and undefined.

Get Advances in Chemical Physics, Special PDF

Crystal Growth: Principles and Progress by A.W. Vere PDF

This ebook is the second one in a sequence of clinical textbooks designed to hide advances in chosen learn fields from a easy and normal perspective, in order that in simple terms restricted wisdom is needed to appreciate the importance of modern advancements. additional tips for the non-specialist is supplied via the precis of abstracts partly 2, including the various significant papers released within the study box.

• Two-Dimensional Crystals
• 4 Volume Set, Handbook of Liquid Crystals
• Introduction to Crystal Growth and Characterization
• Symmetry and Physical Properties of Crystals
• International Tables for Crystallography, Vol.B: Reciprocal Space

Extra info for Interphases and Mesophases in Polymer Crystallization II (Advances in Polymer Science) (v. 2)

Sample text

25 A (Fig. 9A), are present [95–97]. 5 ˚ periodicity. Solid Mesophases in Semicrystalline Polymers: Structural Analysis 31 Fig. 9 Experimental X-ray diffraction intensity distribution of a PAN fiber (A) in the ξ, ζ reciprocal plane, (B) along the equator (for ζ = 0) and (C) along the meridian (for ξ = 0). (A) : Contour lines with constant I(ξ, ζ) values at regular intervals of two units (arbitrary scale). (Reprinted with permission from [97]. 5 A was taken as an indication that the pseudo-hexagonal crystalline form of PAN is formed by elongated portions of chains with a prevailing syndiotactic configuration in a nearly trans-planar conformation [39–48].

15B,B’ the chains are arranged as in the orthorhombic [194] and monoclinic [196] polymorphs of PE, respectively. In Fig. 15C,C’ the chains are arranged as in triclinic form of long chains paraffins [197]. These models were chosen as reference, “ideal” structures, where different kinds of disorder were introduced, in order to better understand their influence on the cal- 40 F. Auriemma et al. Fig. 16 (a) Experimental X-ray diffraction intensity distribution along the first layer line (l = 1) of a stretched sample of EP copolymer in the pseudo-hexagonal mesomorphic form (solid line).

In other terms, the mesomorphic form of EP copolymers may be described as aggregates of clusters chains arranged as in the orthorhombic- monoclinic- or even triclinic-like structures, to form larger bundles, in a mosaic-like structure, as schematically shown in Fig. 17; the interference between different clusters in the mesomorphic aggregate would produce only a background on non-equatorial layer lines [195]. According to the analysis of [195], the mesomorphic hexagonal form of EP copolymers is characterized by the following structural features: 1.

Download PDF sample