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Volume :8 Issue : 1 1981      Add To Cart                                                                    Download

Modification of epoxidised polydienes

Auther : ALI A. Z. EL-FAYOUMI, A. L. IBRAHIM, Y. AKHNOOKH AND AKILA A. SALEH

Department of Chemistry, Faculty of Education, Ain Shams University, Roxy,Heliopolis, Cairo, Egypt

 

ABSTRACT

 

The optimum conditions for the reaction between epoxidised polydienes and polypropylene glycol have been studied. The reaction has been traced by consumption of epoxy groups, crosslinking density, i.r. analysis, and the new properties of the cured polymers. The thermal stability of the modified cured product has been studied employing differential thermal analysis (DTA) and thermogravimetric analysis (TGA) techniques. The results obtained by DTA and TGA support the occurrence of modifications in the cured polymer. The elasticity and flexibility of the cured epoxy polydienes are maintained for a longer period on using polypropylene glycol, indicating its usefulness as a flexibiliser and diluent for epoxidised polydienes. A mechanism for the reaction, based on the above studies, is proposed.

 

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