Macromolecules

End-Quenching of TiCl4-Catalyzed Quasiliving Polyisobutylene with Alkoxybenzenes for Direct Chain End Functionalization

DL Morgan, N Martinez-Castro, RF Storey

Index: Morgan, David L.; Martinez-Castro, Nemesio; Storey, Robson F. Macromolecules, 2010 , vol. 43, # 21 p. 8724 - 8740

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Citation Number: 22

Abstract

Alkoxybenzenes were used to end-quench TiCl4-catalyzed quasiliving isobutylene polymerizations initiated from 2-chloro-2, 2, 4-trimethylpentane or 5-tert-butyl-1, 3-di (1- chloro-1-methylethyl) benzene at− 70° C in 40/60 (v/v) hexane/methyl chloride. The alkoxybenzene/chain end molar ratios were in the range 2.5− 4. Effective alkoxybenzene quenchers included those with simple alkyl groups, such as anisole and ...

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