The directing mechanisms of liquid directing agents of zeolite Y and zeolite L were studied by means of light transmission, ultracentrifugation, NMR, XRD and “
The kinetics of ion exchange between Ca2+, Mg2+, Co(Ⅱ), Cu(Ⅱ),Ni(Ⅱ), Fe(Ⅲ), y3+ or Sm3+ , respectively, in 0.50 mol/L HC1 and H+ on macrorecticular sulfonic
The epoxide is a kind of versatile intermediate for manufacture of a wide variety of fine chemicals. The goal of modem efficient catalytic methods is to produce
Introduction Organic compounds usually have labile bonds. It is well known that thousands of reactions are carried out in solutions, only a few in the gas-phase
A new method for determining the kinetic order and activation energy for atom formation in electrothermal atomic absorption spec-trometry is proposed. The assum
As a newly developed polymer, the dendrimer has interested many chemistry workers. Its highly asymmetric molecular structure and the high density of peripheral
Three-component IPNs were synthesized from polyurethane/poly (methyl acrylate aminoethyl methacrylate)/epoxy resin [PU/P(MADMA)/EP] by simultaneous synthesis in
Among sensitizing systems, the combination of benzophenone(BP) and tertiary amines(TA) has been deeply studied. Since the structure of O-acyl-oximes is similar
Two iron-arene complex photoinitiators with different substituents in arene ligands were synthesized, their activities in initiating photopolymerization of cycl