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Polymérisation par voie carbocationique contrôlée et vivante, conduite en réacteur "batch", de l'isobutène, du styrène et de l'[alpha]-méthylstyrène : contribution à la synthèse de nouveaux élastomères thermoplastiques

Abstract : This paper describes the comparative study of the preparation by «living» cationic polymerization reactions of polyisobutylene (PIB), polystyrene (PSt), poly([alpha]-methylstyrene) (PaMeSt) from IMA (incremental monomer addition) and AMI (all monomer in) techniques using the initiating system TiCl/Dicumylmethylether (DiCumOMe) and TiCl4/Cumylmethylether (CumOMe) in the presence of three Lewis bases: ditertbutylpyridine (DtBP), N,N-dimethylacetamide (DMA) and dimethylsulfoxide (DMSO). Experiments were performed with two different solvent mixtures, n-hexanedichloromethane( 60/40 v/v), methylcyclohexane-dichloromethane(60/40 v/v) and a pure solvent 1-chlorobutane in conventionallaboratory conditions using a batch reactor kept under a dry nitrogen atmosphere. The experiments and obtained results were used particularly to achieve by a "living/controlled" process the synthesis of tribloc copolymers.
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http://docnum.univ-lorraine.fr/prive/INPL_T_1999_HENRIQUES_MALTA_D_S.pdf
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https://hal.univ-lorraine.fr/tel-01750580
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Submitted on : Thursday, March 29, 2018 - 12:49:38 PM
Last modification on : Tuesday, March 30, 2021 - 3:24:40 AM

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  • HAL Id : tel-01750580, version 1

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Domingo Savio Henriques Malta. Polymérisation par voie carbocationique contrôlée et vivante, conduite en réacteur "batch", de l'isobutène, du styrène et de l'[alpha]-méthylstyrène : contribution à la synthèse de nouveaux élastomères thermoplastiques. Alimentation et Nutrition. Institut National Polytechnique de Lorraine, 1999. Français. ⟨NNT : 1999INPL137N⟩. ⟨tel-01750580⟩

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