Nomenclature 1 Source-and Structure-based Names

The rules of nomenclature are set by the International Union of Pure and Applied Chemistry (lUPAC) [5]. When a new polymer has been made, a need to name it arises, even before the structure is known. This is done by giving the polymer a source-based name, as indicated in Fig. 1.11. For example, the polymer made by polymerization of methyl methacrylate is called poly(methyl methacrylate). The monomer name is simply added to the word poly (Gk. tioAuc = many note that 

In the case of methyl methacrylate and most other monomers, several different polymers could be made by different reactions, as will be discussed in Chap. 3. A structure-based name, thus, would be helpful in distinguishing polymers and understanding the special properties of the different macromolecules even if they arise from the same monomer. 

The structure-based names are designed to give a precise link of the name to the structure. The rales are summarized in Fig. 1.12. Basic is the identification of the constitutional repeating unit (CRU). If there is no repetition of the structure within 

The principle of minimizing free valences overrides the seniority rules. 

Pick the name that results in the smallest sum of the numerals 

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