Nomenclature Note No.
Inc. One of the goals of the Nomenclature Committee is to improve communication between polymer scientists by recommending unambiguous, standardized, and universally understood names and terms describing polymeric materials. Depending on the suggestions and feedback received, this column may provide highlights of some nomenclature and terminology recommendations, a limited tutorial on the nomenclature of special classes or types of polymers, answers to some questions of general interest, or reports on international polymer nomenclature developments. What is also frustrating at times is the lack of correspondence between structural representations and the names which are to describe the structures. Yet, the structures shown, even if idealized, provide more information. Not only they show the bivalent constitutional repeating units, but also indicate as has been shown experimentally that heteroatomic nuclei are linked at the 2 and 5 positions.