| http://www.w3.org/ns/prov#value | - substituted hydrocarbon moieties having 1 to about 30 carbon atoms; x, y, and z are independently zero to about 200, and x+y+z .gtoreq.2. R.sub.1 and R.sub.2 can be linear or branched structures having about 20 carbon atoms or less, such as 1 12 carbon
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