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Graft copolymers from modified ethylene–vinyl acetate (EVA) copolymer. I. Synthesis of poly(ethylene-co-vinyl acetate-g-styrene) using EVA modified by mercaptoacetic acid as chain transfer agent

✍ Scribed by Ronilson V. Barbosa; Bluma G. Soares; Ailton S. Gomes

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 389 KB
Volume: 47
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1993.070470812

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✦ Synopsis

The modification of the poly (ethylene-co-vinyl acetate) (EVA) by direct esterification of its ethylene-vinyl alcohol copolymer with mercaptoacetic acid was carried out. The amount of the mercaptan group was controlled to avoid gel formation during the graft polymerization with styrene by chain transfer. The chain transfer constant (Cs) of the SH groups and graft efficiency were measured. These graft copolymers were evaluated as a blend compatibilizer.