A5031606632- Electrocatalysts for Energy Conversion
- Silicone and Siloxane Chemistry
- Synthesis and properties of polymers
- Advanced battery technologies research
- Catalytic C–H Functionalization Methods
- Synthesis and Catalytic Reactions
- Tribology and Wear Analysis
- Epoxy Resin Curing Processes
- CO2 Reduction Techniques and Catalysts
- Fuel Cells and Related Materials
- Click Chemistry and Applications
Chengdu University of Technology
2023-2024
Qingdao University of Technology
2005-2024
Chengdu Technological University
2023-2024
This study demonstrates a highly efficient regiodivergent ligand-controlled palladium-catalyzed cycloaddition reaction of vinyloxazolidine-2,4-diones with 1,3,5-triazinanes. In the presence diphosphine ligand, proceeds via (5+2) pathway to afford 1,3-diazepin-4-ones in excellent yields, while using monophosphine smoothly (3+2) give imidazolidin-4-ones good yields.
In this paper, epoxy/SiO 2 hybrid coating was successfully prepared through sol-gel technique, the structure and thermal properties of were investigated. First, γ-isocyanatopropyltriethoxysilane “(KBE-9007)” used to modify epoxy resin so that ethoxysilane could be grafted on resin. Nano-SiO precursor synthesized by tetraethoxysilane(TEOS) technique. Then modified nano-SiO mixed for 4 hours let macromolecules graft surface , obtained. At last, produced using precursor. The reaction confirmed...
A polyamic acid (PAA) solution with a solids content of approximately 15 wt% was synthesized by reacting pyromellitic dianhydride 4,4'–diaminodiphenyl methane in N-methyl-2-pyrrolidone through ring-opening polyaddition. nano-SiO 2 precursor also from tetraethoxysilane (TEOS) via sol-gel process. SiO -polyimide (SiO -PI) hybrid films were then successfully prepared. The polyimide (PI) film and the -PI characterized FT-IR, XPS SEM. FT-IR spectra showed that PAA became imidized completely after...