ChemInform Abstract: PHOSPHORUS-CONTAINING INTERMEDIATE PRODUCTS AND DYES. IV. PHOSPHORUS-CONTAINING PHENOLS. KINETICS OF THE REACTIONS OF DIALKYL-(4-CHLOROPHENYL)PHOSPHINE OXIDES WITH SODIUM METHOXIDE IN METHANOL

1979 ◽  
Vol 10 (33) ◽  
Author(s):  
V. V. KORMACHEV ◽  
T. V. VASIL'EVA ◽  
K. V. SOLODOVA ◽  
O. T. ALEKSEEVA ◽  
V. A. KUKHTIN
2016 ◽  
Vol 22 (2) ◽  
pp. 139-143 ◽  
Author(s):  
Wuke Lang ◽  
Weijiang Zhang ◽  
Yin Tang ◽  
Jiao Xu ◽  
Lei Zhang

2014 ◽  
Vol 1053 ◽  
pp. 240-244
Author(s):  
Xiu Juan Tian ◽  
Zhong Wei Wang ◽  
Jun Gao

Phosphorus-containing epoxy resins with different phosphorus content were obtained from 2-(Diphenylphosphinyl)-1, 4-benzenediol (DPO-HQ) and biphenyl-A epoxy resin by crosslinking with 4, 4’-diaminodiphenylsulfone (DDS). The thermal degradation kinetics of the modified epoxy resins containing different phosphorus content were investigated by dynamic thermogravimetric analysis (TGA) under air atmosphere with different heating rate. The degradation of epoxy resins containing flame retardant components were found to be changed. The additive of phosphorus increases the carbon residue and improves the thermal stability at elevated temperature. The kinetics of thermal degradation was evaluated by Kissinger method and Flynn-Wall-Ozawa method, which do not require knowledge of the reaction mechanism. The results showed that the activation energies at lower degree of the degradation decreased with increasing of phosphorus content, while increased at higher degree of the degradation.


1997 ◽  
Vol 105 (1) ◽  
pp. 346-350 ◽  
Author(s):  
F. Ravera ◽  
M. Ferrari ◽  
L. Liggieri ◽  
R. Miller

1975 ◽  
Vol 28 (6) ◽  
pp. 1351 ◽  
Author(s):  
JR Cowan ◽  
DKC Hodgeman ◽  
RH Prager

The selective demethylation of 2,3-dimethoxy-10-methyl-9-oxoacridine- 1,4-quinone by sodium hydroxide has been studied by following the change in product composition with hydroxide concentration, by measuring the relative extent of exchange at C2 and C3 with sodium methoxide[T], and by following the kinetics of the reaction in alkali. Reaction pathways are proposed to rationalize the observation that the C2 methoxyl group is replaced more readily in dilute alkali or on warming, but the C 3 methoxyl group is replaced in more concentrated alkali.


2002 ◽  
Vol 76 (3) ◽  
pp. 401-409 ◽  
Author(s):  
Bo Wu ◽  
Yu-Zhong Wang ◽  
Xiu-Li Wang ◽  
Ke-Ke Yang ◽  
Yong-Dong Jin ◽  
...  

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