Quasiliving polymerization of indene, i.e., an increase of the molecular weight of polyindenes with the cumulative amount of consumed monomer, has been demonstrated using the “H2O”/ BCl3, 2-chloroindene/BCl, “H2O”/TiCl4, 2-chloroindene/TiCl4, and cumyl chloride/TiCl4 initiating systems in CH2Cl2 solvent at -50°C. However, chain transfer operates in every system investigated, and sets a limit to DP n,max. The efficiency of the 2-chloroindene and cumyl chloride initiators is very low. The behavior of BCl3 and TiCl4 coinitiators on the polymerization has also been investigated.
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Puskás et al. (1982) studied this question.
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