二(2-重氮-2-苯乙酸)-1,4-丁二醇酯交联剂的合成及在聚己内酯交联中的应用  

Synthesis of Di(2-diazo-2-phenylacetic acid)-1,4-Butanediol Ester and Its Application in the Crosslinking of Polycaprolactone

作　　者：郭欣怡 朱光明[1] Xinyi Guo;Guangming Zhu(School of Chemistry and Chemical Engineering,Northwestern Polytechnical University,Xi’an 710129,China)

机构地区：[1]西北工业大学化学与化工学院,陕西西安710129

出　　处：《高分子材料科学与工程》2024年第6期1-8,共8页Polymer Materials Science & Engineering

摘　　要：重氮化合物在一定条件下可以放出氮气生成卡宾结构,这种高活性的卡宾可以与低表面能的聚己内酯材料进行交联反应,得到具有形状记忆效应的交联聚己内酯材料。文中成功合成了一种重氮型交联剂——二(2-重氮-2-苯乙酸)-1,4-丁二醇酯,并优化了该交联剂的合成条件,使其产率可达92.8%。将二(2-重氮-2-苯乙酸)-1,4-丁二醇酯交联剂加入聚己内酯(PCL)中,成功实现了PCL的交联。当二(2-重氮-2-苯乙酸)-1,4-丁二醇酯添加量为PCL质量的20%时,测得凝胶含量为61.1%,得到的交联PCL具有良好的形状记忆性能,其形状恢复率大于95%、形状固定率可达100%。Under certain conditions,the diazo compound can release nitrogen to form carbene structure,which can cross-link the low surface energy polycaprolactone material to obtain the cross-linked polycaprolactone material with shape memory effect.In this paper,a diazo crosslinker,di(2-diazo-2-phenylacetic acid)-1,4-butanediol ester,was synthesized successfully.The synthesis conditions of the crosslinker were optimized,and the yield of the crosslinker is up to 92.8%.The synthesized di(2-diazo-2-phenylacetic acid)-1,4-butanediol ester was successfully applied to the crosslinking of polycaprolactone(PCL).When the additive amount of di(2-diazo-2-phenylacetic acid)-1,4-butanediol ester is 20%of the mass of PCL,the gel content of PCL is 61.1%.The crosslinked PCL presents good shape memory performance.The shape recovery rate is greater than 95%,and the shape fixing rate can reach 100%.

关 键 词：重氮化合物 聚己内酯 交联反应 形状记忆效应 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]