Summary
The polysiobutylene (PIB) macromonomer having methacryloyl function was prepared from a hydroxy-terminated PIB, α-phenyl-ω-(2-hydroxy-1-methylethyl)-poly(1,1-dimethylethylene) and methacryloyl chloride in the presence of triethylamine. The macromonomer was polymerized by various anionic initiators to form stereoregular polymacromonomers. The polymerization of the macromonomer with t-C4H9MgBr and n-C4H9Li in toluene gave isotactic polymacromonomers. On the other hand, syndiotactic-rich polymacromonomers were obtained in the polymerizations with 1,1-diphenylhexyllithium in tetrahydrofuran and with t-C4H9Li/(C2H5)3Al in toluene.
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Kitayama, T., Kishiro, S. & Hatada, K. Stereoregular polymerization of polysiobutylene macromonomer having methacryloyl function. Polymer Bulletin 25, 161–168 (1991). https://doi.org/10.1007/BF00310787
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DOI: https://doi.org/10.1007/BF00310787