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通过氯磺化共聚物的水解合成了乙烯-丙烯共聚物磺酸钠离聚物,对离聚物的结晶度和其中硫、氯、钠元素的含量进行了表征.当离子含量达到5—7 mol％时,离聚物的LAXD曲线出现离子峰;DSC指出T_g急剧升高,而低于此离子浓度的离聚物均不出现这些现象.反映出此离子浓度下的离聚物,离子基因可能聚集形成离子簇结构.
The sulfonic acid sodium ionomer of ethylene-propylene copolymer was synthesized through the hydrolysis of chlorosulfonated copolymer, and the crystallinity and the content of sulfur, chlorine and sodium in the ionomer were characterized. When the ion content reached 5-7 mol%, the ionic peak appeared on the LAXD curve of the ionomer. DSC indicated that T_g increased sharply, but none of the ionomers below the ion concentration showed these phenomena, reflecting the ionomer at this ion concentration, May cluster to form ion cluster structures.