Melt grafting of maleic anhydride onto an ethylene-propylene-diene terpolymer (EPDM)

Olga P. Grigoryeva, J. Karger-Kocsis

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Peroxide-initiated melt grafting of maleic anhydride (MAH) onto an ethylene-propylene-diene terpolymer (EPDM) of high ethylene content (= 74 wt%) has been studied using a Brabender Plasticoder. The grafting efficiency and crosslinking degree (gel content) of the grafted EPDM rubber (EPDM-g-MAH) were determined by FTIR spectroscopy and xylene extraction, respectively. It was established that both grafting and crosslinking reactions are mostly influenced by the dosage of the MAH and peroxide (2,5-dimethyl-2,5-di-(t-butylperoxy)hexane), respectively. The targeted relative high MAH grafting at low gel content was reached at low concentrations of both MAH (<5 wt%) and peroxide (<0.2 wt%). Processing variables, as mixing temperature and time, rotor speed and filling grade of the mixing chamber, showed only a marginal effect on the competing grafting and crosslinking reactions.

Original languageEnglish
Pages (from-to)1419-1429
Number of pages11
JournalEuropean Polymer Journal
Volume36
Issue number7
DOIs
Publication statusPublished - Jul 1 2000

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Maleic Anhydrides
Terpolymers
Maleic anhydride
dienes
anhydrides
propylene
Propylene
Ethylene
ethylene
Peroxides
peroxides
crosslinking
Crosslinking
Gels
gels
rotor speed
Xylenes
Rubber
Hexanes
xylene

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

Melt grafting of maleic anhydride onto an ethylene-propylene-diene terpolymer (EPDM). / Grigoryeva, Olga P.; Karger-Kocsis, J.

In: European Polymer Journal, Vol. 36, No. 7, 01.07.2000, p. 1419-1429.

Research output: Contribution to journalArticle

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