Formation of the chain microstructure in the synthesis of adamantane-containing copolyimides in molten benzoic acid
作者:M. R. Batuashvili、A. Yu. Tsegel´skaya、N. S. Perov、G. K. Semenova、B. S. Orlinson、A. A. Kuznetsov
DOI:10.1007/s11172-015-0957-8
日期:2015.4
High-resolution 13C NMR spectroscopy was applied to study the chain microstructure of copolyimides obtained at 140 °C by one-pot high-temperature polycondensation in molten benzoic acid from 2,2-propylidene-bis(4-phenylene-4´-oxyphthalic acid) dianhydride (DA, intermonomer) and two comonomers, 1,3-bis(2-aminoethyl)adamantane (ADA) and 9,9-bis(4aminophenyl)fluorene, varying the order of introduction