摘要
简述了富马酸二甲酯的各种合成方法。详细研究了以对甲基苯磺酸和硫脲作为催化剂、以马来酸酐和甲醇作为原料合成富马酸二甲酯的反应条件,探讨了各种因素对合成反应的影响规律,得出了相应的最佳工艺条件,产品得率为92%。
The main factors effecting on TCR of the platinum resistance film are studied in this paper on the basis of film theory and experiments,the high purity of material Pt,suitable thickness of depositing film,(normally is near 1/μm)and the crystallization degree after high temperature treatment. The TCR of platinum resistance film,whose thickness is 800 nm,sputtered on high alumina ceramic or microcrystal glass substrate,is 3.850×10 -3 /℃ after high tempenature heat treatment for 1 hour.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1997年第6期657-661,共5页
Journal of University of Electronic Science and Technology of China
关键词
催化剂
醇解
酯化
异构化
合成
富马酸二甲酯
Platinum thin film
themistor
magnetron sputtering
heat treetment