Multicyclic poly (ether ketone) s obtained by polycondensation of 2, 6, 4'-trifluorobenzophenone with various diphenols

HR Kricheldorf, R Hobzova, L Vakhtangishvili…

文献索引：Kricheldorf, Hans R.; Hobzova, Radka; Vakhtangishvili, Lali; Schwarz, Gert Macromolecules, 2005 , vol. 38, # 11 p. 4630 - 4637

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被引用次数: 23

摘要

2, 6, 4'-Trifluorobenzophenone (TFB) was polycondensed with silylated 4, 4'- dihydroxybiphenyl (DHBP) or silylated bisphenol A in N-methylpyrrolidone by means of K2CO3 as catalyst and HF acceptor. At constant concentration (0.08 mol/L) the feed ratio was varied from 1.0/1.0 to 1.0/1.5. For polycondensations of DHBP cross-linking was observed for feed ratios above 1.0/1.1, whereas no gelation occurred with bisphenol A ...