采用强化辐射交联的聚己内酯(PCL)作为基体,制备了一种可降解性形状记忆泡沫材料.研究了PCL的强化辐射交联特性、辐射剂量对发泡的影响以及该泡沫材料的形状记忆性.结果表明,含有多个双键官能团的单体(TMPTA)对PCL的辐射交联具有明显的促进作用；且添加多官能团单体的辐射交联规律不再遵从Charlesby-Pinner关系式,而用陈-刘-唐关系式处理,得到比较好的线性关系.同时还研究了发泡对交联PCL形状记忆性能的影响,发现PCL泡沫的形状记忆性能与辐射剂量:和发泡剂的用量密切相关.当辐射剂量较高或发泡剂用量较高时,得到较好的形状记忆效应.
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