Provisional Recommendations
Provisional Recommendations
Explanatory Glossary of Terms Used in Expression of Relative Isotope Ratios and Gas Ratios
To minimize confusion in the expression of measurements of isotope and gas ratios, a glossary based on recommendation by the Commission on Isotopic Abundances and Atomic Weights of the IUPAC is presented. Entries in the glossary are consistent with the SI system of units or with recommendations of the Commission. The recommendations presented herein are designed to clarify expression of quantities related to measurement of isotope and gas ratios by ensuring that quantity equations and not numerical-value equations are used to define quantities. Examples of column headings consistent with SI recommendations and examples of various deprecated usages connected with the terms recommended are presented herein.
Comments by 31 May 2008
Dr. Tyler B. Coplen
U.S. Geological Survey
431 National Center
12201 Sunrise Valley Drive
Reston, VA 20192, USA
TEL: +1 703-648-5862
FAX: +1 703-648-5832
E-MAIL: tbcoplen@usgs.gov
www.iupac.org/reports/provisional/abstract08/coplen_310508.html
Page last modified 3 June 2008.
Copyright © 2003-2007 International Union of Pure and Applied Chemistry.
Questions regarding the website, please contact edit.ci@iupac.org
Provisional Recommendations
Glossary of Class Names of Polymers Based on Chemical Structure and Molecular Architecture
This document defines class names of polymers based on the class names of starting monomers and characteristic features of the chemical constitution of polymer molecules (macromolecules), i.e., class names that have gained general acceptance in the polymer and material literature, science and technology as well as in public.
The glossary is divided into three parts:
Source-based class names, which identify common classes of starting monomers such as “acrylic”, “diene”, “phenolic”, “vinylic”.
Class names based on chemical structure, which identify characteristic groups in the main chains (backbones) of the polymer molecules such as (i) inter-unit groups derived from functional groups, e.g., “amide”, “ester”, “ether”; (ii) a specific group of atoms, e.g., “alkenylene”, “siloxane”, “sulfone”; (iii) ring structures, e.g., “benzimidazole”, “benzoxazole”, “quinoxaline”.
Class names based on molecular architecture, which identify mainly the overall shapes of polymer molecules through the type of their graphical representation such as “linear”, “branched”, “dendritic”, “comb”.
Each part of the glossary is arranged in a non-hierarchical alphabetical order. Each entry provides: a) the polymer class name; b) its definition; c) specific or generic examples including IUPAC names and a structure or graphical representation; d) relations to other polymer classes and subclasses; e) notes on the inclusion or exclusion of borderline cases. Alphabetical index of all class names is included.
Comments by 30 June 2008
Prof. Jiri Vohlidal
Universita Karlova
Katedra Fyzikalni a Makromolekularni Chemie
Albertov 2030
CZ-128 40 Praha 2, Czech Republic
TEL: +[420] 2 2195 2347
FAX: +[420] 2 2491 9752
E-MAIL: vohlidal@natur.cuni.cz
www.iupac.org/reports/provisional/abstract08/vohlidal_300608.html
Page last modified 3 June 2008.
Copyright © 2003-2007 International Union of Pure and Applied Chemistry.
Questions regarding the website, please contact edit.ci@iupac.org
© 2014 by Walter de Gruyter GmbH & Co.
Articles in the same Issue
- Masthead
- Contents
- Adding a Stone to the IUPAC Edifice
- Spain Celebrates Its Year of Science Honoring Mendeleev
- Where Does IUPAC Stand with Regard to this Discipline?
- Triads, Triads, Everywhere
- Chemistry in the Information and Communications Technology Age
- Analytical Terminology and the Orange Book–The Resources at the End of the Rainbow
- Peter Mahaffy Awarded 3M Canada Teaching Fellowship
- Pieter S. Steyn Receives Science for Society Gold Medal
- Chemical Heritage Foundation Produces Distillations, a Weekly Podcast
- Mechanistic Aspects of Chemical Vapor Generation of Volatile Hydrides for Trace Element Determination
- Assessment of Theoretical Methods for the Study of Reactions Involving Global Warming Gas Species Degradation and Byproduct Formation
- Analysis of the Usage of Nanoscience and Technology in Chemistry
- Extension of ThermoML–The IUPAC Standard for Thermodynamic Data Communications
- Provisional Recommendations
- Further Conventions for NMR Shielding and Chemical Shifts (IUPAC Recommendations 2008)
- Transport of Pesticides via Macropores (IUPAC Technical Report)
- Performance Evaluation Criteria for Preparation and Measurement of Macro- and Microfabricated Ion-Selective Electrodes (IUPAC Technical Report)
- Chemists and “The Public”: IUPAC’s Role in Achieving Mutual Understanding (IUPAC Technical Report)
- DE STERS!
- Glossary of Terms Related to Solubility (IUPAC Recommendations 2008)
- Structure-Based Nomenclature for Cyclic Organic Macromolecules (IUPAC Recommendations 2008)
- Impact of Scientific Developments on the Chemical Weapons Convention (IUPAC Technical Report)
- Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008)
- The Periodic Table: Database or XML?
- The Investigation of Organic Reactions and their Mechanisms
- Modern Physical Chemistry for Advanced Materials
- Physical Organic Chemistry in Latin America
- Infrared Spectroscopy Applied to Biological and Biomimetic Systems
- Malta III–Research and Education in the Middle East
- The Future of Science Is through Its Students
- Physical Organic Chemistry
- Safe Food
- Macro- and Supra-Molecular Architectures and Materials
- Challenges in Organic and Bioorganic Chemistry
- Nano-Bio & Clean Tech
- Chemistry Industry and Environment
- Mark Your Calendar
Articles in the same Issue
- Masthead
- Contents
- Adding a Stone to the IUPAC Edifice
- Spain Celebrates Its Year of Science Honoring Mendeleev
- Where Does IUPAC Stand with Regard to this Discipline?
- Triads, Triads, Everywhere
- Chemistry in the Information and Communications Technology Age
- Analytical Terminology and the Orange Book–The Resources at the End of the Rainbow
- Peter Mahaffy Awarded 3M Canada Teaching Fellowship
- Pieter S. Steyn Receives Science for Society Gold Medal
- Chemical Heritage Foundation Produces Distillations, a Weekly Podcast
- Mechanistic Aspects of Chemical Vapor Generation of Volatile Hydrides for Trace Element Determination
- Assessment of Theoretical Methods for the Study of Reactions Involving Global Warming Gas Species Degradation and Byproduct Formation
- Analysis of the Usage of Nanoscience and Technology in Chemistry
- Extension of ThermoML–The IUPAC Standard for Thermodynamic Data Communications
- Provisional Recommendations
- Further Conventions for NMR Shielding and Chemical Shifts (IUPAC Recommendations 2008)
- Transport of Pesticides via Macropores (IUPAC Technical Report)
- Performance Evaluation Criteria for Preparation and Measurement of Macro- and Microfabricated Ion-Selective Electrodes (IUPAC Technical Report)
- Chemists and “The Public”: IUPAC’s Role in Achieving Mutual Understanding (IUPAC Technical Report)
- DE STERS!
- Glossary of Terms Related to Solubility (IUPAC Recommendations 2008)
- Structure-Based Nomenclature for Cyclic Organic Macromolecules (IUPAC Recommendations 2008)
- Impact of Scientific Developments on the Chemical Weapons Convention (IUPAC Technical Report)
- Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008)
- The Periodic Table: Database or XML?
- The Investigation of Organic Reactions and their Mechanisms
- Modern Physical Chemistry for Advanced Materials
- Physical Organic Chemistry in Latin America
- Infrared Spectroscopy Applied to Biological and Biomimetic Systems
- Malta III–Research and Education in the Middle East
- The Future of Science Is through Its Students
- Physical Organic Chemistry
- Safe Food
- Macro- and Supra-Molecular Architectures and Materials
- Challenges in Organic and Bioorganic Chemistry
- Nano-Bio & Clean Tech
- Chemistry Industry and Environment
- Mark Your Calendar
