1,2-Cyclohexanediodicarboxylate(glycol ether)esters(alcohol ether ester,the same below)were synthesized by direct esterification between 1,2-cyclohexanedioic anhydride(HHPA)and glycol ether(ethylene glycol methyl ether series,ethylene glycol butyl ether series),and characterized by FTIR and 1HNMR.Polyvinyl chloride(PVC)products with alcohol ether esters plasticization were then analyzed for their mechanical properties,micro-morphology,thermal stability,migration resistance,volatility resistance and weather resistance.The results showed that the plasticizing effect of alcohol ether esters was positively correlated with the ethoxylase when the number of unilateral ethoxylase groups was less than 3.Compared with the PVC product(DOP/PVC)plasticized by dioctyl phthalate(DOP),PVC product(HHPTEM/PVC)plasticized by 1,2-cyclohexane dicarboxylate(triethylene glycol methyl ether)ester(HHPTEM)exhibited an elongation at break improved by 88.0%,and the temperature of 5%mass loss increased by 20.2℃,while the mass loss rate in n-hexane and toluene decreased by 7.6%and 4.9%,respectively.In the volatilization test conducted at 70℃,the mass loss rate decreased by 1.9%,and the elongation retention rate at break increased by 8.6%after 10 d of ultraviolet aging.
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