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Erschienen in:
1998 | OriginalPaper | Buchkapitel
The Nature of Polymers
verfasst von : Keith L. Watson
Erschienen in: Foundation Science for Engineers
Verlag: Macmillan Education UK
Enthalten in: Professional Book Archive
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In Topic 16 we saw that the specific and directional nature of the covalent bond leads to the formation of compounds consisting of individual molecules of particular shapes and sizes. We also saw that a carbon atom, with its valency of 4, can form four covalent bonds that tend to be distributed in a tetrahedral configuration — as, for example, in methane. We noted that ethane is the first member of a series of chain-like hydrocarbon molecules. Figure 25.1 suggests that, by successively inserting —CH2— groups into a chain, we could make it as long as we like.