SYNTHESIS OF POTASSIUM-S-1,2- DIHYDROXYPROPYLSULPHONATE AND ITS INCORPORATION TOSYNTHESISE POLYESTER IONOMER

An anionic diol, potassium-S-1,2-dihydroxyprppylsulphonate, (SDOL) has been synthesised by using phase transfer catalyst, benzyltriethylammonium chloride and subsequently used for the preparation of polyester ionomer. A series of polyester were successfully synthesised by using different molar ratio of the ionic diol and propane diol. The monomer (ionic diol) and polyester were characterised by FTIR, 1H NMR, TGA and DTG. The inherent viscosities of polyesters were in the range 0.38-1.21 dL/g.