Synthesis, properties, and comparative analyses on the chain flexibility of an ultrastable vinyl polyperoxide



The most stable vinyl polyperoxide, namely, poly(indene peroxide) (PINDP), an alternating copolymer of indene and oxygen, was synthesized by the oxidative polymerization of indene. It was characterized by 1H-NMR and 13C-NMR, Fourier transform infrared, differential scanning calorimetry, direct pyrolysis mass spectrometry, and gas chromatography mass spectrometry studies. The overall activation energy for the degradation and the glass-transition temperature of PINDP were 47 kcal/mol and 327 K respectively, which were very high compared to those of other vinyl polyperoxides. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 2108–2114, 2002