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Free Radical Copolymerization of Ethylene with Vinyl Acetate under Mild Conditions

Free Radical Copolymerization of Ethylene with Vinyl Acetate under Mild Conditions

Authors :
Vincent Monteil
Christophe Boisson
Edgar Espinosa
A. Zarrouki
Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 (C2P2)
Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Source :
Macromolecules, Macromolecules, American Chemical Society, 2017, 50 (9), pp.3516-3523. ⟨10.1021/acs.macromol.6b02756⟩
Publication Year :
2017
Publisher :
HAL CCSD, 2017.

Abstract

This work highlights a medium pressure and temperature radical polymerization process in organic solvents for the synthesis of ethylene–vinyl acetate copolymers (EVA). Organic solvents play a crucial role in copolymerization yields, copolymer molar masses, chemical composition, and branching degree. THF and dimethylcarbonate (DMC) were selected, yielding EVA copolymers exhibiting molar masses from 1000 up to 35000 g mol–1 and vinyl acetate contents between 4 and 32 mol %. In the case of DMC, an additional transfer agent (propanal) was required to reach the molar-mass range targeted for the specific application of EVA copolymers as cold flow improver (CFI): an essential diesel fuel additive.

Details

Language :
English
ISSN :
00249297 and 15205835
Database :
OpenAIRE
Journal :
Macromolecules, Macromolecules, American Chemical Society, 2017, 50 (9), pp.3516-3523. ⟨10.1021/acs.macromol.6b02756⟩
Accession number :
edsair.doi.dedup.....869bb1143ec3ede40515a74ed521516b
Full Text :
https://doi.org/10.1021/acs.macromol.6b02756⟩