Synthesis and Use of Polyoxychloropropylen-Epoxymethacrylate Oligoesters as Active Modifier of Epoxy Diane Resin Ed-20
Abstract
The synthesis of polyoxychloropropylenepoxymethacrylate oligoesters by esterification of polyoxychloropropylenetriepoxide by methacrylic acid has been carried out. It has been established that by varying the conditions of carrying out of the reaction, one can prepare, mainly, the mono-, di- and trimethacrylic oligoesters. On the basis of epoxy diane ED-20 and synthesized polyoxychloropropylenepoxymethacrylate oligoesters as modifiers there have been prepared the self-extinction compositions, which after curing by N, N 1 –diaminodiphenylsulfone possess higher physical-mechanical, adhesion and heat-physical properties.
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Introduction
The epoxymethacrylates prepared by esterification of epoxy-containing oligomers by methacrylic acid find wide application as the photo- and radiation-sensitive components and also as the modifiers of epoxide resins [1, 2]. Their use as the lowviscous plasticizers and reactive modifiers allows preparing the polymer materials with low residual tension, higher elasticity, high adhesion and impact strength. Most often, the composition containing oligoestermethacrylates as a modifier at structuring are chemically not connected with molecules of epoxy resin [3]. This leads to deterioration of some indices of the prepared polymer materials and first of all – to decrease of stability in the conditions of long exploitation. From this point of view the epoxymethacrylate oligoesters synthesized by esterification of polyoxychloropropylentriepoxide (1) by methacrylic acid are of interest. An availability of chlorine atom in composition of these compounds allows their use as antipyrenes and an availability of epoxide groups along with methacrylate fragments leads to the chemical binding with modifying epoxide resin during curing of the prepared mixture with curing agents of amine type.
Conclusion
Polyoxychloropropylenepoxymethacrylate oligoesters by esterification of polyoxychloropropylenetriepoxide of methacrylic acid have been synthesized. It has been shown that by varying the conditions of carrying out of the reaction, one can prepare, mainly, the mono-, di- and trimethacrylic oligoesters.
On the basis of epoxy diane ED-20 and synthesized polyoxychloropropylenepoxymethacrylate oligoesters as modifiers there have been prepared the self-extinction compositions, which after curing by N, N 1 –diaminodiphenylsulfone possess higher physical-mechanical, adhesion and heat-physical and thermal properties.