Free Radical Copolymerization of Ethylene with Vinyl Acetate under Mild Conditions

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....

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Bibliographic Details
Published inMacromolecules Vol. 50; no. 9; pp. 3516 - 3523
Main Authors Zarrouki, A, Espinosa, E, Boisson, C, Monteil, V
Format Journal Article
LanguageEnglish
Published American Chemical Society 09.05.2017
Subjects
Chemical Sciences
Material chemistry
Polymers
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Summary: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.
ISSN:0024-9297
1520-5835
DOI:10.1021/acs.macromol.6b02756