Cationic Graft Copolymerization

acid added addition alkylaluminum amounts analysis backbone behavior blends branches Butyl calculated carried cationic cationic grafting CH₂ chain transfer characterization Chem chlorine Cl-IIR coinitiator composition compounds concentration containing conversion copolymerization crude Curve degradation determined dissolved distribution effect epoxide Et2AICI Et3Al Evidently experimental experiments extraction Figure formed fraction further graft copolymer grafting efficiencies higher homogeneous homopolymer Hypalon increasing indicate initiation insoluble isobutylene J. P. Kennedy lower materials Me3Al method mixture molecular weight monomer n-pentane Nordel observed obtained occurred oxide Patent pentane phase PIB branches polarity Polym polymerization polystyrene precipitation prepared presence properties PSt content PTHF pure PVC-g-PIB PVC-g-PSt range reaction removed rubber samples separation shown shows soluble solution solvent structure studies styrene synthesis Table techniques temperature terminated ungrafted PVC viscosity volume yield