Synthesis of α-methylene-δ-valerolactone and its selective polymerization from a product mixture for concurrent separation and polymer production [0.03%]
α-甲基丁烯酸内酯的合成及其混合产物的可分离聚合生产研究
Alexander A Khechfe,Francesca D Eckstrom,Eswara Rao Chokkapu et al.
Alexander A Khechfe et al.
We report the continuous, gas-phase synthesis of α-methylene-δ-valerolactone (MVL) from δ-valerolactone (DVL) and formaldehyde (FA) over alkaline earth oxide catalysts. MgO, CaO, and BaO supported on silica (∼5 wt%) were active for MVL ...
Valeriy Cherepakhin,Travis J Williams
Valeriy Cherepakhin
We report the first process for iridium element recovery from organoiridium waste that is quantitative, pyrolysis-free, and generates no iridium metal. The key step is oxidative degradation of the waste by bleach to crude iridium(IV) hydrox...
3D structure-functional design of a biomass-derived photocatalyst for antimicrobial efficacy and chemical degradation under ambient conditions [0.03%]
一种用于生物基光催化剂的三维结构-功能设计以实现抗菌和化学降解性能
Wan Zhang,Yuanhao Liang,Cheng Hu et al.
Wan Zhang et al.
Surface sterilization and hazardous chemical degradation under ambient conditions can provide significant benefits for public and environmental health. Materials with sterilization and chemical degradation capacity under sunlight can effici...
Catalytic pyrolysis mechanism of lignin moieties driven by aldehyde, hydroxyl, methoxy, and allyl functionalization: the role of reactive quinone methide and ketene intermediates [0.03%]
催化醛基、羟基、甲氧基和烯丙基官能团化单元的木质素裂解反应机制：反应性茋中间体的作用
Zeyou Pan,Xiangkun Wu,Andras Bodi et al.
Zeyou Pan et al.
The catalytic pyrolysis of guaiacol-based lignin monomers, vanillin, syringol, and eugenol over commercial HZSM-5 has been investigated using operando Photoelectron Photoion Coincidence (PEPICO) spectroscopy to unveil the reaction mechanism...
Andries Jensma,Niels Elders,Keimpe J van den Berg et al.
Andries Jensma et al.
In the quest for sustainable paints and coatings, bio-based resources for the polymeric binder constituents are key. Recently, we introduced poly-butenolides as bio-based acrylate replacement for solventborne and 100% solids (UV-curing) coa...
Catalyst free PET and PEF polyesters using a new traceless oxalate chain extender [0.03%]
用于合成聚对苯二甲酸以烷二元羧酸为链延长剂的无催化剂聚酯PET和PEF聚酯的新方法
Kevin van der Maas,Daniel H Weinland,Robert-Jan van Putten et al.
Kevin van der Maas et al.
Plastic material performance is strongly correlated to the polymer's molecular weight. Obtaining a sufficiently high molecular weight is therefore a key goal of polymerization processes. The most important polyester polyethylene terephthala...
Path2Green: introducing 12 green extraction principles and a novel metric for assessing sustainability in biomass valorization [0.03%]
Path2Green：引入12项绿色提取原则以及评估生物质转化可持续性的一种新型度量标准
Leonardo M de Souza Mesquita,Leticia S Contieri,Francisca A E Silva et al.
Leonardo M de Souza Mesquita et al.
We propose an innovative approach to address the pressing need for efficient and transparent evaluation techniques to assess extraction processes' sustainability. In response to society's growing demand for natural products and the conseque...
Methanesulfonic acid (MSA) in clean processes and applications: a tutorial review [0.03%]
甲磺酸(MSA)的清洁工艺及应用：教程型综述论文
Koen Binnemans,Peter Tom Jones
Koen Binnemans
This Tutorial Review acquaints chemists and metallurgists with the properties and industrial applications of methanesulfonic acid (MSA, CH3SO3H). Over the past quarter-century, MSA has garnered increasing interest as a reagent for green che...
Expanding the toolbox of Baeyer-Villiger and flavin monooxygenase biocatalysts for the enantiodivergent green synthesis of sulfoxides [0.03%]
扩大Baeyer-Villiger和黄素单加氧酶生物催化剂的工具箱以实现硫氧化物的不同立体选择性绿色合成
Jingyue Wu,Silvia Anselmi,Alexandra T P Carvalho et al.
Jingyue Wu et al.
Two new monooxygenase biocatalysts, the Baeyer-Villiger monooxygenase BVMO145 and the flavin monooxygenase FMO401 from Almac library, have been found to catalyse the enantiodivergent oxidation of sulfides bearing N-heterocyclic substituents...
Molecular structure and composition elucidation of an industrial humin and its fractions [0.03%]
工业褐煤焦油及其组分的分子结构与组成研究
Sandra Constant,Christopher S Lancefield,Willem Vogelzang et al.
Sandra Constant et al.
Humins, (side-)products of the acid-catalysed dehydration of carbohydrates, will be produced in substantial quantities with the development of industrial biorefining processes. Most structural knowledge about such humins is based on synthet...