Abstract
AbstractThe interaction between a number of organic fluors and vinyltoluene during thermally induced polymerization has been investigated by using kinetic and fluorescence techniques. It has been confirmed that 2,5‐diphenyloxazole, bis‐2(5‐phenyloxazoyl)benzene and p‐terphenyl do not react in the polymerizing medium and are present in the final product as solute in a solid solution. However, 1,1′4,4′‐tetraphenyl‐1,3‐butadiene and 9‐methylanthrancene do react, via chain‐transfer steps. The diene is concentrated in the low molecular weight tail of a polymer of broad molecular weight distribution and can be removed by further fractionation. The anthrancene species undergoes structural rearrangement with accompanying loss of fluorescence activity during reaction with the growing polymer chains.
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