Posted on Mar 26, 2010 in Chemistry | 2 comments
why is polyesters symbol a D and not a P.
Polyester is a category of polymers which contain the ester functional group in their main chain. Although there are many polyesters, the term “polyester” as a specific material most commonly refers to polyethylene terephthalate (PET) (Wikipedia). There are actually various other letters that can appear after the name polyester (e.g., Polyester E, Polyester R and Polyester R-Tek). The letter(s) after the word polyester is oftentimes applied as a form of generic name extension used to identify the type or usage of the polyester or for other branding purposes.
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