A phosphorus-containing monomer （lO-oxo-10-hydro-9-oxa-10λ^5-phosphaphenanthrene-10-yl）-methyl acrylate （MD was copolymerized with styrene to give a potential flame retardant copolymer of high thermal stability. T...A phosphorus-containing monomer （lO-oxo-10-hydro-9-oxa-10λ^5-phosphaphenanthrene-10-yl）-methyl acrylate （MD was copolymerized with styrene to give a potential flame retardant copolymer of high thermal stability. The structures of monomer and copolymer were characterized by FT-IR and ^1H NMR measurements. The reactivity ratios for free-radical of the monomer （M1） and styrene （Mz） were studied. The calculated results are as follows： r1 = 0.225, r2 = 0.503; Q1 = 0.413, e1 = 0.476; azeotropic point = 0.37. TGA and DTG curves indicated that Ml is a potential flame retarding monomer for styrenic polymers. C 2009 Yu Bin Zheng. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.展开更多
Chloromethylated poly（phthalazinone ether sulfone ketone） （CMPPESK） was prepared from poly（phthalazinone ether sulfone ketone） （PPESK） using chloromethyl octyl ethers （CMOE） with lower toxicity as chlorometh...Chloromethylated poly（phthalazinone ether sulfone ketone） （CMPPESK） was prepared from poly（phthalazinone ether sulfone ketone） （PPESK） using chloromethyl octyl ethers （CMOE） with lower toxicity as chloromethylated regent. CMPPESK was soluble in N-methyl-2-pyrrolidone （NMP）, N,N-dimethylacetamide （DMAc） and chloroform. Quaternized poly（phthalazinone ether sulfone ketone） （QAPPESK） was prepared from CMPPESK by quaternization. QAPPESK had excellent solvent resistance, which was only partly soluble in sulfuric acid （98%） and swollen in N,N-dimethylformamide （DMF）. The vanadium redox flow battery （V-RFB） using QAPPESK anion-exchange membrane had better performance with 88.3% of overall energy efficiency.展开更多
文摘A phosphorus-containing monomer （lO-oxo-10-hydro-9-oxa-10λ^5-phosphaphenanthrene-10-yl）-methyl acrylate （MD was copolymerized with styrene to give a potential flame retardant copolymer of high thermal stability. The structures of monomer and copolymer were characterized by FT-IR and ^1H NMR measurements. The reactivity ratios for free-radical of the monomer （M1） and styrene （Mz） were studied. The calculated results are as follows： r1 = 0.225, r2 = 0.503; Q1 = 0.413, e1 = 0.476; azeotropic point = 0.37. TGA and DTG curves indicated that Ml is a potential flame retarding monomer for styrenic polymers. C 2009 Yu Bin Zheng. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
基金partly financed by the Major State Basic Research Development Program of China(No.2003 CB615700)the National Natural Science Foundation of China(No.20604005).
文摘Chloromethylated poly（phthalazinone ether sulfone ketone） （CMPPESK） was prepared from poly（phthalazinone ether sulfone ketone） （PPESK） using chloromethyl octyl ethers （CMOE） with lower toxicity as chloromethylated regent. CMPPESK was soluble in N-methyl-2-pyrrolidone （NMP）, N,N-dimethylacetamide （DMAc） and chloroform. Quaternized poly（phthalazinone ether sulfone ketone） （QAPPESK） was prepared from CMPPESK by quaternization. QAPPESK had excellent solvent resistance, which was only partly soluble in sulfuric acid （98%） and swollen in N,N-dimethylformamide （DMF）. The vanadium redox flow battery （V-RFB） using QAPPESK anion-exchange membrane had better performance with 88.3% of overall energy efficiency.
