Soluble Poly(propargyl benzoate) (PPBT) with p -conjugated structure was synthesized using a novel bis(triphenylphosphine)-bisacetylide palladium complex cataly
From the petroleum part of the 70% acetone extract of Coleus xanthanthus, two new abietane diterpenoids have been isolated and identified as 11-acetoxy-coleon U
3,3' -Dioxo-1,1' (3H,3' H)spirobi[isobenzofuran]-5,6,5' ,6' -tetracarboxylic acid 1 was resolved successfully and the corresponding optically active polyimides
The synthesis and properties of a class of soluble fluorine-containing aromatic polyimides are described. The polyimides show desirable features of materials fo
The critical micelle concentrations (CMC) and the micelle-forming enthalpies (D Hmic) of gemini surfactants were first measured by the precise titration microca
31P NMR has become a widely applied spectroscopic probe of the structure of phosphorus-containing compounds. Meanwhile, the application of 31P NMR has been rapi