| prov:value
| - In particular, the resin may include homopolymers of styrene and its derivatives and copolymers thereof such as polystyrene, poly-p-chlorostyrene, polyvinyltoluene, styrene-p-chlorostyrene copolymers, styrene-vinyltoluene copolymers, copolymers of styrene and acrylic acid esters such as methyl acrylate, ethyl acrylate,-n-butyl acrylate, and 2-ethylhexyl acrylate, copolymers of styrene and methacry
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