| http://www.w3.org/ns/prov#value | - Another class of polymers are those derived from vinyl substituted aromatics having a total of from about 8 to about 12 carbon atoms such as styrene, alpha-methyl styrene, vinyl pyridine, and the like, and copolymers thereof such as those made from conjugated dienes having from 4 to about 12 carbon atoms such as butadiene, isoprene, and the like.
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