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Synthesis of Ethylene/Acrylonitrile Composite Elastomers with Nanosized Polyacrylonitrile Domains Using α‐Dimine‐[ N,N ] Nickel Dichloride/EASC
Author(s) -
Shin SangYoung,
Simon Leonardo C.,
Soares Joao B. P.
Publication year - 2011
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000414
Subject(s) - polyacrylonitrile , acrylonitrile , polymer chemistry , nitrile , materials science , nickel , differential scanning calorimetry , xylene , polymer , chemistry , composite material , copolymer , organic chemistry , toluene , physics , thermodynamics
A series of ethylene and acrylonitrile composite elastomers were prepared using (1,4‐ bis (2,6diisopropylphenyl)‐acenaphtenediimine‐nickel(II))‐dichloride/ethylaluminum sesquichloride (EASC). The xylene‐soluble polymer fraction showed nitrile bands in infrared spectroscopy at 2 245 and 2 214 cm −1 and polyacrylonitrile‐enriched structures were detected in the xylene‐insoluble fraction by 1 H and 13 C NMR. In addition, TEM detected nanosized polyacrylonitrile domains dispersed in the polyethylene matrix. Differential scanning calorimetry scans conducted from −70 to 350 °C measured exothermic bands corresponding to the cyclization and aromatization of the nitrile groups dispersed in the polyethylene matrix.