Nomenclature - E. S. Wilks

The Nomenclature Committee membership remains essentially unchanged since the last meeting, which was held on Monday, April 2nd, 2001. The "call for new members" advertisement, placed on the POLY website, http://www.chem.umr.edu/~poly/nomenclature.html, has elicited no further inquiries in the last 2 years. Nevertheless, the ACS POLYmer Division Nomenclature Committee proposes to leave it on the website in the hope of attracting new members.

A. Items from the IUPAC Meeting in Brisbane (June/July, 2001)

A1. Web-Based Document for Identification, Orientation, and Naming of CRUs/SRUs. Ted Wilks has created an English-language, web-based version of the IUPAC recommendations for correct identification, orientation, and naming of constitutional repeating units (CRUs); these are essentially the same as the CAS principles for correct identification, orientation, and naming of structural repeating units (SRUs). The document, entitled "Guide for the Authors of Papers and Reports in Polymer Science and Technology", is available on the IUPAC website (go to http://www.iupac.org/reports/IV/guide.html and select Download document (pdf file — 254KB)). This article is more extensive than the previously published Macromolecular Nomenclature Note (MNN) No. 18, which was little more than an introduction to the subject; however, it is still easier to read than the formal IUPAC and CAS documents upon which it is based. Authors and editors of books, encyclopedias, and journal articles are encouraged to use it.

The POLY website cross-reference http://www.iupac.org/divisions/IV/IV.1/index.html leads to this article on the IUPAC website.

A2. Other IUPAC Matters. Four Committee members (Fox, Metanomski, Wilks, and Work) continue to contribute to projects of the IUPAC Commission on Macromolecular Nomenclature, although Fox and Metanomski are enjoying "semi-retirement" in that they now act mainly as consultants. Topics in various stages of development, for which they are directly responsible, include:

- Fox, Wilks: Structure-Based Nomenclature for Cyclic Macromolecules (Project 29/97)

- Metanomski, Wilks: Glossary of Polymer Class Names (Project 30/97)

- Wilks: Guide to IUPAC Polymer Terminology and Nomenclature (Project 22/93)

- Wilks: Nomenclature for Chemically Modified Polymers (Project 33/99; renamed from its former title Process-Based Nomenclature for Modified Polymers)

- Wilks: Nomenclature for Rotaxanes and Catenanes (Project 35/2000)

- Wilks: "Purple Book" revision

- Work: Definitions of Terms Related to Polymer Blends and Multi-Phase Polymeric Materials (Project 24/93)

Project 29/97: except for nomenclature for spiro-macrocycles, all differences between the Fox and Schultz/Wilks approaches had been resolved prior to the Brisbane meeting (Dr. J. L. Schultz, a retired DuPont employee, is an IUPAC consultant). For nomenclature for spiro-macrocycles, a decision was made at the Brisbane meeting to accept the Schultz/Wilks approach, rather than the alternative approach by Fox. Prof. Ernest Marechal elected to relinquish his position as Project Leader for this project; from July, 2001, his place will be taken by Prof. Werner Mormann (Univ. of Siegen, Germany).

Project 30/97: Prof. Jiri Vohlidal (Charles Univ., Prague) continues to work on this document, for which Ted Wilks is nominally Project Leader. The latest version, presented at the Brisbane meeting, was well received; the document is near completion-minor corrections are still needed.

Project 22/93: seven of the eight chapters proposed for the Guide have been assembled in electronic format; we await a decision on whether the planned Chapter 2, Polymerization Reactions, will be written or abandoned.

Project 33/99: suggestions for minor modifications made at the Warsaw meeting were implemented in the revision distributed November 1, 2000. Further suggestions made at the Brisbane meeting will be implemented in the next revision (due November 1, 2001).

Project 35/2000: suggestions for minor modifications made at the Warsaw meeting were implemented in the revision distributed November 1, 2000. Further suggestions made at the Brisbane meeting will be implemented in the next revision (due November 1, 2001).

"Purple Book" revision: the 1991 edition of the "Purple Book" has been converted to .pdf format and is available on the IUPAC website http://www.iupac.org/publications/books/author/metanomski.html. As revised chapters become available, they will replace earlier ones. When the revised chapters for the complete second edition are available, IUPAC will publish the book. Ted Wilks is responsible for collecting all revised chapters and editing of the complete second edition.

B. Promulgation of Correct Polymer Nomenclature and Structure-Based Representations

B1. Macromolecular Nomenclature Note No. 18 (MNN 18). The contents of MNN 18 continue to draw interest. The original article, published in Polymer Preprints, 2000, 41(1), 6a-11a, has been translated into Chinese, Hungarian, and Spanish. The Chinese and Hungarian versions were published in polymer journals in China[1] and Hungary[2], respectively, and the Spanish version is available on the POLY website[3]. The Nomenclature Committee’s thanks go to Prof. Jiasong He* for the Chinese version, to the DuPont Language Services Unit and Dr. Andrew Foldi for the Hungarian version, and to Prof. Javier Macossay** for the Spanish version.

[1] Gaofenzi Tongbao (Polymer Bulletin) 2001, No. 2, 74-80.

[2] Muanyag es Gumi (Rubber and Plastics), 2001, 38, 49-55.

[3] http://www.chem.umr.edu/~poly/nomenclature.html

*IUPAC Commission IV.1 member

**ACS POLYmer Division Nomenclature Committee member

Work is still in progress on translations into:

- Japanese (there is the possibility that the ACS POLY Division Nomenclature Committee 2002 budget will pay for the translation)

- Korean, courtesy Prof. Choon Do

- Polish, courtesy Prof. Osman Akhmatowicz*

- Portuguese (for Brazilian readers), courtesy Dr. David Tabak*

- Russian, courtesy Prof. Valery Shibaev* (Vysokomolekulyarnye Soedineniya will publish English and Russian versions)

B2. Other MNN Versions available on the POLY website

- http://www.chem.umr.edu/~poly/nomenclature.html. Spanish-language versions of MNN 16 ("Modern Nomenclature And Terminology For Polymer Science and Engineering") and MNN 17 ("Whither Nomenclature?"). The Nomenclature Committee thanks Prof. Javier Macossay for his diligent translations.

- MNN 19 by Prof. Bela Ivan, entitled "Terminology and Classification of Quasiliving Polymerizations and Ideal Living Polymerizations on the Basis of the Logic of Elementary Polymerization Reactions, and Comments on Using the Term ‘Controlled’", was published in Polym. Prepr. 2000, 41(2), 6a-13a, and also in Macromol. Chem. Phys., 2000, 201, 2621-2628, by Wiley-VCH, Weinheim, Germany, through the courtesy of Dr. Ingrid Meisel, a IUPAC Commission IV.1 member.

- MNN 20 by Sylvia Teague (Chemical Abstracts Service), entitled "Siloxanes and Silicones in the CAS Databases" was published in the paper edition of Polym. Prepr. 2001, 42(1); it was inadvertently omitted from the CD-ROM edition, but it will appear in the 2001, 42(2) CD-ROM edition.

C. Other Matters. The Committee continues to promote polymer-nomenclature recommendations, especially those of the IUPAC Commission on Macromolecular Nomenclature (Commission IV.1). The Committee monitors how the macromolecular nomenclature matters are explained and discussed in various textbooks and handbooks, and offers suggestions for improvements. Individual questions from POLY members and requests to help in the naming of polymers are answered promptly.