Monomeric diols, phosphate linked oligomers formed therefrom and processes for preparing
申请人:——
公开号:US20030065146A1
公开(公告)日:2003-04-03
Novel ethylene glycol compounds bearing various functional groups are used to prepare oligomeric structures. The ethylene glycol monomers can be joined via standard phosphate linkages including phosphodiester and phosphorothioate linkages. Useful functional groups include nucleobases as well as polar groups, hydrophobic groups, ionic groups, aromatic groups and/or groups that participate in hydrogen-bonding.
Thermal runaway risk of 2,2′-azobis(2-methylbutyronitrile) under the process situations
作者:Jihe Zhao、Jiwen Hu、Yonglu Dong、Daguang He、Xuefeng Gui、Xiaohua Cui、Yuanyuan Tu、Shudong Lin
DOI:10.1007/s10973-023-12113-4
日期:2023.7
Thermal runaway accidents have occurred mainly during storage and transportation of azo compounds because large amounts of heat were released during the course of thermaldecomposition. In this study, the thermal runaway characteristics of 2,2′-azobis(2-methylbutyronitrile) (AMBN) were first comprehensively investigated via differential scanning calorimetry (DSC), accelerating rate calorimetry (ARC)
热失控事故主要发生在偶氮化合物的储存和运输过程中,因为在热分解过程中释放出大量热量。在这项研究中,首先通过差示扫描量热法 (DSC)、加速量热法 (ARC) 和气相色谱/质谱法 (GC) 全面研究了 2,2'-偶氮二(2-甲基丁腈) (AMBN) 的热失控特性-多发性硬化症)。起始温度 ( T on )、分解热 ( Q ) 和绝热温升 (Δ T ad)确定,涉及储运安全。使用 DSC 和 ARC 数据进行相应的热动力学分析。从实验和计算中获得的数据用于预测自加速分解温度 (SADT)、控制温度 ( T NR ) 和紧急温度 ( T C,I )。此外,研究了AMBN热解产物中的易燃成分,特别是与HCl、NaOH和Fe 2 O 3等不相容物质的混合,这有助于预测储存和运输过程中的热失控风险。 图形概要
Holy, Antonin; Rosenberg, Ivan; Dvorakova, Hana, Collection of Czechoslovak Chemical Communications, 1989, vol. 54, # 9, p. 2470 - 2501
作者:Holy, Antonin、Rosenberg, Ivan、Dvorakova, Hana
DOI:——
日期:——
Efimtseva, Ekaterina V.; Mikhailov, Sergey N.; Mashkov, Sergey, Journal of the Chemical Society. Perkin transactions I, 1995, # 11, p. 1409 - 1416
作者:Efimtseva, Ekaterina V.、Mikhailov, Sergey N.、Mashkov, Sergey、Hankamaeki, Teemu、Oivanen, Mikko、Loennberg, Harri