Abstract
Polyacrylic elastomer is a chemically saturated polymer of acrylic acid esters. Since esters are rather inert, other groups such as epoxy, halogen and carboxyl must be incorporated into the polymer to introduce sites for curing. We have studied the effect of various ammonium and phosphonium salt catalysts on the rate of crosslinking of polyacrylic elastomers which contain carboxyl and epoxy groups as cure-sites. We find that the catalytic activity of onium salts correlates with nucleophilicity of their anions.
The onium salt catalyzed reaction of a polyacrylic elastomer containing epoxy groups as cure-sites was enhanced by the addition of a dicarboxylic acid as an external crosslinking agent. This enhancement of cure rate decreased by increasing the,alkylene chain length of the dicarboxylic acid. This behavior can be explained by the dissociation constants, K1 and K2,of dicarboxylic acid.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
H.P. Brown, Rubber Chem. Technol., 36, 931 (1963).
E. Giannetti and coworkers, Rubber Chem. Technol., 56, 21 (1983).
H. Kaiuchi and Y. Tanaka, J. Org. Chem., 31, 1559 (1966).
K. Hisauma and coworkers, Kogyo Kagaku Zasshi, 70, 169 (1967).
V.F. Shrets and A.V. Romashkin, Kinet. Catal., 13, 796 (1972).
Y. Enoki and coworkers, Nippon Kagaku Kaishi, 132 (1973).
R. Ueshima and H. Munakata, Nippon Kagaku Kaishi, 1496 (1973).
H. Kamatari, Nippon Kagaku Kaishi, 1505 (1977).
C.G. Swain and C.B. Scott, J. Am. Chem. Soc., 75, 141 (1953).
R.G. Pearson, H. Sobel and J. Songstad, J. Am. Chem. Soc., 90, 319 (1968).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 Springer Science+Business Media New York
About this chapter
Cite this chapter
Nakagawa, T., Yagishita, S., Hosoya, K., Inagami, M. (1986). A New Crosslinking Reaction of Polyacrylic Elastomer by Onium Salt Catalyst. In: Lal, J., Mark, J.E. (eds) Advances in Elastomers and Rubber Elasticity. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1436-4_13
Download citation
DOI: https://doi.org/10.1007/978-1-4757-1436-4_13
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-1438-8
Online ISBN: 978-1-4757-1436-4
eBook Packages: Springer Book Archive