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Influence of Layered Silicate on the Self‐Crosslinking of Polychloroprene and Carboxylated Nitrile Rubber
Author(s) -
Das Amit,
Stöckelhuber Klaus Werner,
Heinrich Gert
Publication year - 2009
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.200800427
Subject(s) - organoclay , materials science , natural rubber , acrylonitrile , nitrile rubber , neoprene , polymer chemistry , nanocomposite , intercalation (chemistry) , composite material , polymer , chemical engineering , copolymer , chemistry , organic chemistry , engineering
The effect of organically modified clay on the properties of self‐crosslinkable carboxylated acrylonitrile‐butadiene rubber (XNBR) and polychloroprene rubber (CR) blend is studied. Results of blends produced without crosslinking agents are compared with conventional sulphur cured compounds. Sulphur cured blends exhibit improved physical properties after the incorporation of organophilic‐modified clay. In contrast, the self‐crosslinked blends do not show any reinforcement after the incorporation of the organoclay. XRD spectra show an intercalation of polymer chain into the gallery gap of the clay in both cases. ATR‐IR, DMA and SEM studies of these composites confirm that organoclay particles constrain the self‐crosslinking mechanism. The influence of the organoclay on the crystallisation of CR is also shown.