Compagnie Generale Des Etablissements Michelin

Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Cpe Lyon Formation Continue Et Recherche

Michelin Recherche Et Technique S.a.

Arkema France

Université Claude Bernard Lyon I

Ecole Superieure De Chimie Physique Electronique De Lyon

Totalenergies Onetech

Cpe Lyon Formation Continue Et Recherche-cpe Lyon Fcr

Franck D'Agosto

Christophe Boisson

Julien Thuilliez

Vincent Lafaquiere

Leyla Pehlivan

Sébastien Norsic

Benoît MacQueron

Andrew P Kahn

Anthony Bonnet

Samuel Devisme

Vincent Monteil

Emma Moreso

François Jean-Baptiste-Dit-Dominique

Robert Ngo

Guillaume Cortial

Muriel Lansalot

Timothy McKenna

Benoît Macqueron

Ian German

Mathieu Fuentes-Exposito

Nicolas Baulu

Damien Montarnal

Ana-Maria Cenacchi-Pereira

Arne Wolpers

A diblock polymer composed of a first block and a second block is provided. The first block is a statistical copolymer comprising units of a 1,3-diene and more than 50 mol % of ethylene units. The second block is a polyethylene with a melting point above 90° C. and a number-average molar mass greater than or equal to 2000 g/mol and less than or equal to 10 000 g/mol. Such a diblock polymer has improved rheology compared to a statistical copolymer of the same microstructure and of the same macrostructure as the first block of the diblock polymer.

Ethylene-rich diene block polymer having a random block and a polyethylene block

The present invention relates to a process for producing a stable fluorinated latex by emulsion polymerization in the absence of fluorinated surfactant, stabilized by an amphiphilic block copolymer formed in situ. The invention also concerns the aqueous dispersion comprising the fluorinated polymer chains and the amphiphilic block copolymers, obtained by this process.

Synthesis of surfactant-free poly (vinylidene fluoride) latexes via raft emulsion polymerization

An ethylene/1,3-butadiene copolymer containing ethylene units, butadiene units and UD units of cyclic, 1,2-cyclohexanediyl structure, and bearing, at one of its chain ends, an alkoxysilyl or silanol function, functional group Fis provided. The UD units of cyclic structure are of the following formula: 

Functional ethylene and 1,3-butadiene copolymer

A copolymer of a 1,3-diene and of an olefin selected from the group consisting of &#x3b1;-monoolefins, ethylene and mixtures thereof is provided. The copolymer bears, at one of its chain ends, an alkoxysilyl or silanol function, functional group F, and the copolymer is different from a copolymer of a 1,3-diene and a vinylaromatic monomer.

Functional copolymer consisting of a 1,3-diene and an olefine

A copolymer comprising a copolymer chain A bearing a function B selected from the group consisting of the functions B1 and B2, the copolymer chain A being a copolymer chain comprising monomer units M1 and monomer units M2, M1 being a conjugated diene and M2 being a monomer selected from the group consisting of &#x3b1;-monoolefins, ethylene and mixtures thereof, B1 being selected from the group consisting of N(SiMe3)2; N(SiMe2CH2CH2SiMe2); para-C6H4(NMe2); para-C6H4(OMe); para-C6H4(N(SiMe3)2); ortho-CH2-C6H4NMe2; ortho-CH2-C6H4OMe; C6F5; C3F7; C6F13; CH(OCH2CH2O); B2 being a function that is derived from B1, is provided. Such a copolymer is synthesized by using a transfer agent bearing the function B1 and a carbon-metal bond, the metal being an alkaline-earth metal, zinc or aluminium.

Monofunctional or telechelic copolymer of 1,3-diene and ethylene or alpha-monoolefin

A compound and the use thereof to prepare a functional or telechelic polyolefin is provided. The compound has the following formula (II):Y((CH)&#x2014;B')&#x2003;&#x2003;(II), wherein

Transfer agent for the preparation of a functional or telechelic polyolefin

Telechelic polyolefin of formula(I) and its derivatives:CH&#x2550;CH&#x2014;(CH)-A-Z&#x2003;&#x2003;(I)wherein:

Telechelic polyolefin and preparation thereof

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Genas, France

Franck D'Agosto