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
郭欣怡 1朱光明1
作者信息
- 1. 西北工业大学化学与化工学院,陕西西安 710129
- 折叠
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％.
Abstract
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Key words
diazo compound/polycaprolactone/crosslinking reaction/shape memory effect引用本文复制引用
出版年
2024
NETL
NSTL
万方数据