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The effect of highly specific lattice hydrogen bonding on morphologies of solution-grown crystals

✍ Scribed by Alan J. Waddon

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 189 KB
Volume: 35
Category: Article
ISSN: 0887-6266
DOI: 10.1002/(sici)1099-0488(199706)35:8<1175::aid-polb2>3.0.co;2-t

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✦ Synopsis

Morphologies of solution-grown crystals in systems containing strong and specific intralattice hydrogen bonding (nylons) are compared with systems displaying only van der Waals intracrystal attractions. The latter are shown to produce crystals that clearly mirror the underlying crystallographic symmetry; in the former systems the morphologies are much more complex and disorganized. This difference is discussed in terms of intralattice forces affecting growth rates and chain rearrangement during crystallization. Arguments deriving from differences in lamellar thickening behavior are also used to demonstrate this point.

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