ISSN:
0022-3832
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Some general rules regarding the conformation and mode of packing of macromolecular chains in crystals are illustrated. The monomeric units occupy equivalent positions in regard to the axis of the chain. It follows that crystallizable polymers must have a type of regularity which will enable them to assume the helix- or glide-plane conformation. Energy considerations lead to other rules regarding the conformation and the mode of packing of the chains. Isosterism phenomena leading to statistical substitution of chains in the lattice and to the existence of planes, along which the macromolecules pack preferentially are considered. The structures of isotactic and syndiotactic polymers, and of all four stereoisomeric polybutadienes are discussed.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1959.1203913504
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