【摘 要】
：
Seven caged bicyclic phosphate compounds were synthesized by using 1-oxo-4-hydroxymethy1-2,6,7-trioxa-1-pho-sphabicyclo[2.2.2] octane (PEPA) as starting materia
【机 构】
：
College of Materials Science and Engineering,College of Chemistry and Chemical Engineering
论文部分内容阅读
Seven caged bicyclic phosphate compounds were synthesized by using 1-oxo-4-hydroxymethy1-2,6,7-trioxa-1-pho-sphabicyclo[2.2.2] octane (PEPA) as starting material. Within them were three PEPA derivatives containing single caged bicyclic phosphate structure(1a,2a,3a), another three PEPA deviratives containing two caged bicyclic phosphate structures(1b,2b,3b) and one devirative(1c) containing three caged bicyclic phosphate structures. Structures of the products were characterized by FTIR, 1H NMR, elemental analysis and TG analysis. The reaction conditions were also discussed. Thermal analysis showed they had high thermal stability and excellent char-forming ability. Besides, these compounds had pentaerythritol bone and flame retardant elements of phosphorus, bromine or nitrogen simultaneously in their molecules, endowed them with good fire retardancy, and made them can be used as intumescent flame retardant.
其他文献
To increase predictive behaviors of neural network dynamic model, an experimental case study of a new approach to systems controller design is presented. The ex
It is becoming possible to do detailed numerical analyses for the various mechanical behavior of braced excavation by researching and developing the numerical a
To study the dynamic properties of the concrete subjected to impulsive loading,stress-time curves of concrete in different velocities were measured using split
In order to investigate the effects of puerarin on pulmonary vascular remodeling and protein kinase C-α (PKC-α) in chronic exposure smoke rats, 54 male Wistar
For refurbishment and state review of an existing old building,a new model reflecting the current state is often required especially when the original plans are
In quantum circuits, importing of additional qubits can reduce the operation time and prevent de-coherence induced by the environment. However, excessive qubits
Polyhedron lead hydroxide carbonate (2PbCO3·Pb(OH)2) microcrystals have been prepared in solution phase via a facile method in the presence of surfactant cetyl
Data selection-based summation fusion (DSSF) was developed to overcome the shortcomings of previously developed likelihood ratio tests based on channel statisti
Outwardly rectifying swelling-activated chloride conductance (lCl,Swell) in rabbit heart plays a critical role in cardioprotection following ischemic preconditi