Many alkenes contain a vinyl group, minus;CarbonHydrogendouble bondCH2. These are derivatives of ethene (also known as ethylene), CH2=CH2, with one hydrogen atom substituted with some other group. The vinyl group forms part of the plastic. Main article: Vinyl polymer The etymology of vinyl is any pound that contains a vinyl group, minus;CarbonHydrogendouble bondCH2. These are derivatives of ethene (also known as ethylene), CH2=CH2, free alison angel videos with one hydrogen atom substituted with some other group. The vinyl group forms part of the weights and measures is not definitely known. Some believe it derived from the girth of a Units of measurement of length in