Editing Polyethylene (section)

==Nomenclature and general description of the process==
The name polyethylene comes from the ingredient and not the resulting chemical compound, which contains no double bonds. The scientific name ''polyethene'' is systematically derived from the scientific name of the monomer.<ref name=guide/><ref name="Kahovec">{{cite journal|doi=10.1351/pac200274101921|title=Nomenclature of regular single-strand organic polymers (IUPAC Recommendations 2002)|year=2002|last1=Kahovec|first1=J.|last2=Fox|first2=R. B.|last3=Hatada|first3=K.|journal=Pure and Applied Chemistry|volume=74|page=1921|issue=10|doi-access=free}}</ref> The alkene monomer converts to a long, sometimes ''very'' long, alkane in the polymerization process.<ref name="Kahovec" /> In certain circumstances it is useful to use a structure-based nomenclature; in such cases [[IUPAC]] recommends poly(methylene) (poly(methanediyl) is a non-preferred alternative).<ref name=guide>{{Cite book|url= http://www.acdlabs.com/iupac/nomenclature/93/r93_683.htm |title=A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993) IUPAC, Commission on Nomenclature of Organic Chemistry |year=1993 |publisher=Blackwell Scientific Publications |isbn=978-0632037025 |access-date=20 February 2014}}</ref> The difference in names between the two systems is due to the ''opening up'' of the monomer's double bond upon polymerization.<ref>{{cite web|url= http://old.iupac.org/reports/provisional/abstract04/favre_310305.html |title=IUPAC Provisional Recommendations on the ''Nomenclature of Organic Chemistry'' |date=27 October 2004 |publisher=International Union of Pure and Applied Chemistry |access-date=20 February 2014}}</ref> The name is abbreviated to ''PE''. In a similar manner [[polypropylene]] and [[polystyrene]] are shortened to PP and PS, respectively. In the United Kingdom and India the polymer is commonly called ''polythene'', from the ICI [[trademark|trade name]], although this is not recognized scientifically.