摘要
The thermal degradation behavior of 4, 4-bishydroxydeoxybenzoin-polyphosphonate( BHDB-PPN) was investigated by gas chromatograph-mass spectrometer( GC-MS)and thermogravimetric analysis( TGA). It was found that BHDBPPN exhibited a different char formation way from the previous proposed mechanism based on the residue analysis by Fourier transform infrared spectra( FTIR) and the gas phase analysis by GC-MS. The thermal degradation kinetics was studied through TGA at various heating rates to identify the activation energy of BHDBPPN at two decomposition stages which were mainly attributed to the evolved phenol and benzene respectively. It was demonstrated that the activation energy at the second stage was much higher than that at the first stage,indicating that more energy was required to break the P—C bond to form benzene in comparison to the formation of phenol.
The thermal degradation behavior of 4, 4-bishydroxydeoxybenzoin-polyphosphonate（ BHDB-PPN） was investigated by gas chromatograph-mass spectrometer（ GC-MS）and thermogravimetric analysis（ TGA）. It was found that BHDBPPN exhibited a different char formation way from the previous proposed mechanism based on the residue analysis by Fourier transform infrared spectra（ FTIR） and the gas phase analysis by GC-MS. The thermal degradation kinetics was studied through TGA at various heating rates to identify the activation energy of BHDBPPN at two decomposition stages which were mainly attributed to the evolved phenol and benzene respectively. It was demonstrated that the activation energy at the second stage was much higher than that at the first stage,indicating that more energy was required to break the P—C bond to form benzene in comparison to the formation of phenol.
作者
胡锡龙
王彦
于俊荣
诸静
胡祖明
HU Xilong, WANG Yan, YU Junrong, ZHU Jing, HU Zuming(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, Chin)
基金
National Natural Science Foundation of China(No.51473031)
Natural Science Foundation of Shanghai,China(No.15ZR1401100)
