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“Solid-Liquid” Vitrimers Based on Dynamic Boronic Ester Networks
Solid-liquid Dynamic covalent bond Boronic ester bond Strain-rate dependent High stretchability
2023/12/8
The “solid-liquid” behavior of vitrimers have not been systematically investigated. Herein, a series of “solid-liquid” vitrimers bearing varying contents of dynamic boronic ester bonds were synthesize...
High-efficient esterification of rosin and glycerol catalyzed by novel rare earth Lewis acidic ionic liquid: Reaction development and mechanistic study
Rosin glyceride Rare earth Lewis acidic ionic liquid Esterification DFT Catalysis
2023/12/7
Background: As one of the most important modified products of rosin, rosin glyceride was widely used in many aspects. However, the preparation of rosin glyceride is always unfriendly due to the use of...
Development and evaluation of a hydrogenated rosin (β-acryloxyl ethyl) ester–bonded silica stationary phase for high-performance liquid chromatography separation of paclitaxel from yew bark
Rosin-based stationary phase Paclitaxel Retention mechanism Separation Yew-bark extract
2023/12/5
Paclitaxel (PTX) is a complex diterpenoid anticancer drug whose separation from yew biomass poses a significant challenge. In this study, a new stationary phase comprising hydrogenated rosin (β-acrylo...
Preparation of rosin-based polymer microspheres as a stationary phase in high-performance liquid chromatography to separate polycyclic aromatic hydrocarbons and alkaloids
rosin-based stationary phase alkaloids polycyclic aromatic hydrocarbons polymer microspheres
2024/3/8
Acrylpimaric acid ethylene glycol acrylate was used as the cross-linking agent to prepare rosin-based polymer microspheres through membrane emulsification-microsuspension polymerization. The prepared ...
Liquid Impregnation of Green Wood using a Roller-pressing Method
refractory wood green wood roller press impregnation cyclic compression
2009/3/6
Phenol-formaldehyde resin (PF resin) solution was impregnated by a roller-press into Sugi (Cryptomeria japonica D. Don) sapwood, spruce (Picea spp.) heartwood, and Douglas-fir (Pseudotsuga menziesii F...
The Mechanism of Liquid Movement in a Wood Cell Cavity by Continuous Visual Observation I.
liquid penetration visual continuous observation degree of suction tracheid
2009/3/6
In this research, samples of heartwood from three softwood species (hinoki, Douglas-fir and sugi) were treated by 1)hot water extraction ; 2)compression perpendicular to grain ; and 3)a method combini...