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Structure-based macromolecular nomenclature

The first publication of the lUPAC in the area of macromolecular nomenclature was in 1952 by the Sub-commission on Nomenclature of the then lUPAC Commission on Macromolecules, which drew on the talents of such remarkable individuals as J. J. Hermans, M. L. Huggins, O. Kratky, and H. F. Mark. That report [1] was a landmark in that, for the first time, it systematized the naming of macromolecules and certain symbols and terms commonly used in polymer science. It introduced the use of parentheses in source-based polymer names when the monomer from which the polymer is derived consists of more than one word, a practice that is now widely followed, and it recommended an entirely new way of naming polymers based on their structure that included the suffix amer , a recommendation that has been almost totally ignored. After ten years, the Sub-commission issued its second report [2], which dealt with the then-burgeoning field of stereoregular polymers. A revision [3] of definitions in the original report appeared four years later. In 1968, a summary report [4] of the activities of the Subcommission was published. [Pg.453]

Because the exact structure of the polymer is not always known, two systems of macromolecular nomenclature have been developed source-based nomenclature and structure-based nomenclature. [Pg.104]

A Macromolecular Division of IUPAC was created in 1967, and it created a permanent Commission on Macromolecular Nomenclature, parallel to the other nomenclature commissions. The Commission over the years has issued recommendations on basic definitions, stereochemical definitions and notations, structure-based nomenclature for regular singlestrand organic polymers and regular single-strand and quasi-singlc-strand inorganic and coordination polymers, source-based nomenclature for polymers and abbreviations for polymers. All of these are collected in a compendium referred to as the IUPAC Purple Book. [Pg.1091]

Examples of the two macromolecular nomenclature systems are as follows. For source-based names for homopolymers and copolymers polyacrylonitrile, poly(mcthyl methacrylate), polylacrylamidc-co-vinylpynolidinone), polybutadiene-felocJ-polystyrene, and poly(propyl methacrylate)-gra/t-poly( 1-vinylnaphthalene). Structure-based examples arc as follows polyloxy-l,4-phcnylcnct (1), po]y(oxycthyl-cncoxytcrcph-thaloy) (2) and poly[imino(l-oxo-l,6-hexanediyl)J (3). [Pg.1091]

The lUPAC Macromolecular Nomenclature Commission has developed a systematic nomenclature for polymers (Al, A2). The Commission recognized, however, that a number of common polymers have semisystematic or trivial names that are well established by usage. For the reader s convenience, the recommended trivial name (or the source-based name) of the polymer is given under the polymer structure, and then the structure-based name is given. For example, the trivial name, polystyrene, is a source-based name, literally the polymer made from styrene. The structure-based name, poly(l-phenylethylene), is useful both in addressing people who may not be familiar with the structure of polystyrene and in cases where the polymer is not well known. This book uses a source-based nomenclature, unless otherwise specified. The following structures are lUPAC recommended. [Pg.26]

Wilks ES (1999) Macromolecular nomenclature note No. 17 Whither Nomenclature Polym Prep 40(2) 6-ll Wilks ES (2000a) Polymer nomenclature the controversy between source-based and structure-based representations (a personal perspective). Prog Polym Sci 25 9-100 Wilks ES (2000b) Macromolecular nomenclature note No. 18 SRUs Using the Rules. Polym Prep 41(l) 6a-l la... [Pg.1007]

International Union of Pure and Applied Chemistry, Nomenclature of Regular Double-Strand (Ladder and Spiro) Organic Polymers (Recommendations 1993), PureAppL Chem., 65,1561-1580 (1993). International Union of Pure and Applied Chemistry, Structure-Based Nomenclature for Irregular Single-Strand Organic Polymers (Recommendations 1994), PureAppL Chem., 66,873-889 (1994). International Union of Pure and Applied Chemistry, Source-Based Nomenclature for Non-Linear Macromolecules and Macromolecular Assemblies (Recommendations 1997). PureAppL Chem., 69, 2511— 2521 (1997). [Pg.2333]

An important function of nomenclature is for the storage and retrieval of information. It is therefore of interest to examine, with the help of this example, the practice of Chemical Abstracts— the prime chemical search tool of the Western world—which, except for a small number of macromolecular materials of well-defined structure, indexes polymers on the basis of their supposed monomers or precursors rather than as substances in their own right. Until 1971," the substances in question were indexed under terephthalic acid, polyester with 1,4-butanediol and polytetramethylene glycol . Subsequently, partial use has been made of lUPAC-recommended structure-based nomenclature, leading to a cycle of expressions of the type 1,4-benzenedicarboxylic acid, polymer with 1,4-butanediol and a-hydro-cu-hydroxypoly(oxy-l,4-butanediyl) , permuted to commence with each reactant in turn. It will be noted that these terms presuppose what is not the case in practice, that terephthalic acid (1,4-benzenedicarboxylic acid) is an immediate precursor of the polymers. However, further search will show the polymers located under a cycle of names of the type poly(oxy-1,4-butanediyl), a-hydro-m-hydroxy, polymer with 1,4-butanediol and dimethyl 1,4-benzenedicar-boxylate , and will reveal that the assigned Chemical Abstracts Registry numbers, which are intended... [Pg.1138]

It was earlier stated that in the macromolecular nomenclature lUPAC is recommending the use of common and semisystematic names for monomers in the source-based polymer names. The structure-based names, on the other hand, are more related to the structural characteristic of the polymers. But even there, lUPAC allows for a limited number of common names for such substituent groups as allyl and vinyl , and for bivalent groups such as adipoyl and terephthaloyl . [Pg.22]

Mesophase materials of linear, flexible macromolecules have gained attention only more recently, when it was found that parallel molecular orientation is easily achieved in some of these mesophases. This orientation can lead to high modulus and tensile strength 6). Presently there exists a certain amount of confusion in the literature about the description, properties, and nomenclature of these macromolecular mesophases and their place in the arrangement of all matter. Even for the better understood small-molecule mesophases there are some problems in the description of glasses and in the separation of orientational and conformational disorder. Also, the distinction between mesophases based on molecular structure and on super-molecular structure is not always made. We will try in this review to clarify some of these points. [Pg.3]

Non-linear polymers comprise branched, graft, star, cyclic, and network macromolecules. Polymer blends, interpenetrating networks, and polymer-polymer complexes are summarized as macromolecular assemblies. Their skeletal structure should be reflected in the name by using an italicized connective as a prefix to the source-based name of the polymer component or components to which the prefix applies. Table 5.10.1 lists aU classifications for non-Unear macromolecules and macromolecular assemblies with their corresponding prefixes [971UP2]. Examples for nomenclature are given in Table 5.10.2 (non-linear macromolecules) and Table 5.10.3 (macromolecular assemblies). [Pg.93]


See other pages where Structure-based macromolecular nomenclature is mentioned: [Pg.892]    [Pg.892]    [Pg.394]    [Pg.449]    [Pg.103]    [Pg.1007]    [Pg.6]    [Pg.534]   


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Structure nomenclature

Structure-based nomenclature

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