Composition
Conventional chewing gums use poly(styrene-co-butadiene) or poly(ethylene-co-vinylacetate). In contrast, Rev7 Gum contains an amphiphilic material, containing both hydrophobic (water repellent) and hydrophilic (water attracting) regions, which aids in the degradability and removability of the substance. It is composed of a polyisoprene backbone and grafts of poly(ethylene oxide) (PEO) and has a CAS number of 1246080-53-4.Development
The polymer was developed at the University of Bristol in an effort to curb pollution issues, due to regular chewing gum, which are prevalent in the United Kingdom. Britain spends over £150 million annually (as of 2008) on gum cleanup efforts, using techniques such as high pressure steam hoses, corrosive materials, and freezing machines to help remove this synthetic material from sidewalks and other public spaces. Its name is derived from the word "revolution" (Rev), and the number of attempts it took to achieve the degradable gum (7). Rev7 has two flavours: Natural Peppermint and Natural Spearmint.Availability
United Kingdom
Rev7 launched in Spring 2012.United States
Rev7 was on the US market from 4 October 2010 to December 2012, when it was withdrawn due to low sales. It was available at multiple retailers, including 7-Eleven, Huck's Market, Mobil, BP andReferences
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