From ball-milling to bead-milling technology: rapid optimization and scale-up of a one-pot Wittig olefination-Diels-Alder reaction sequence using an agitator bead mill [0.03%]
从球磨到珠磨技术：使用搅拌珠磨机快速优化和放大一步Wittig烯化-Diels-Alder反应序列
Nina Biedermann,Johanna Templ,Kenneth Banderob et al.
Nina Biedermann et al.
Mechanochemical methods offer a sustainable alternative to traditional solution-based synthesis, yet their scalability beyond laboratory-scale ball mills remains a challenge and often requires lengthy re-optimization for larger scales. Here...
Amorphous-to-crystalline transformation: a mechanochemical pathway to imine-linked covalent organic frameworks [0.03%]
无定形到结晶的转变：用于亚胺连接共价有机框架的一种机械化学途径
Normanda Brown,Yogendra Nailwal,Tyra Blair et al.
Normanda Brown et al.
Amorphous-to-crystalline transformation is of profound importance in the crystallization of covalent organic frameworks (COFs), yet its potential through solid-state mechanochemistry remains largely unexplored. Here, we introduce a mechanoc...
The role of ball mass, surface, and contact dynamics in mechanochemical reactions [0.03%]
球体质量、表面和接触动力学在机械化学反应中的作用
Marisol F Rappen,Justus Mäder,Tino Schwemin et al.
Marisol F Rappen et al.
In this work, the influence of milling ball properties on energy transfer and mixing efficiency was systematically investigated by decoupling mass, surface area, and kinetic energy. To achieve this, hollow and solid balls of different sizes...
Motion matters: the role of milling ball trajectories in mechanochemical reactions [0.03%]
研磨球运动轨迹在机械化学反应中的作用
Marisol Fabienne Rappen,Justus Mäder,Sven Grätz et al.
Marisol Fabienne Rappen et al.
Mechanochemistry has become a powerful and sustainable approach in synthetic chemistry, yet the fundamental principles governing energy transfer during milling remain poorly understood. In particular, the trajectory of the milling ball has ...
Thermally accelerated Heck reaction under direct mechanocatalysis using palladium milling balls [0.03%]
利用钯磨球直接机械催化热加速的赫克反应
Johanna Templ,Suhmi Hwang,Tino Schwemin et al.
Johanna Templ et al.
We present a direct mechanocatalytic approach for the Mizoroki-Heck coupling of aryl iodides with olefins using palladium milling balls as catalyst under elevated temperatures in a ball milling reactor. The high chemoselectivity for C(sp2)-...
Influence of ball milling parameters on the mechano-chemical conversion of polyolefins [0.03%]
球磨参数对聚烯烃机械化学转化的影响
Adrian H Hergesell,Claire L Seitzinger,Justin Burg et al.
Adrian H Hergesell et al.
Ball-milling of addition polymers such as polyolefins, polystyrene and polyacrylates can be used for depolymerization to obtain the respective monomers. However, absolute yields are typically low, especially from polyolefins which are notor...
Mechanochemical synthesis and transformation of the polymorphic double carbonates fairchildite and buetschliite, (K2Ca(CO3)2): an in situ X-ray powder diffraction study [0.03%]
球状碳酸盐fairchildite和buetschliite的机械化学合成与转变：原位X射线粉末衍射研究
Volker Kahlenberg,Doris E Braun,Wolfgang Schmidt et al.
Volker Kahlenberg et al.
This study presents the mechanochemical synthesis of the two K2Ca(CO3)2 polymorphs, fairchildite and buetschliite, from CaCO3 and K2CO3 using a shaker mill. Unlike previous methods requiring high temperatures and prolonged heating, fairchil...
Thermodynamic limits of the depolymerization of poly(olefin)s using mechanochemistry [0.03%]
利用机械化学法解聚聚烯烃的热力学限制
Yuchen Chang,Van Son Nguyen,Adrian H Hergesell et al.
Yuchen Chang et al.
Mechanochemistry is a promising approach for chemical recycling of commodity plastics, and in some cases depolymerization to the monomer(s) has been reported. However, while poly(olefin)s comprise the largest share of global commodity plast...
Olusegun Abayomi Olalere,Fatma Guler,Christopher J Chuck et al.
Olusegun Abayomi Olalere et al.
Extracting edible nutrient-rich food fractions from unconventional sources, such as grass, could play a pivotal role in ensuring food security, bolstering economic prosperity, combating climate change, and enhancing overall quality of life....