000			01845nam a2200229Ia 4500
008			220216s9999 xx 000 0 und d
100			_aJieping Zhong
245		0	_aStudy on thermo-oxidative decomposition and kinetics of chlorinated natural rubber from latex
260			_bProceedings of IRRDB Symposium 1999, Hainan, Peoples Republic of China. pp.458-464. _c1999
520			_aThe thermooxidative decomposition and its kinetics of chlorinated natural rubber (CNR) from latex were studied by thermal gravimetry (TG) analysis and TG coupled with fourier transform infrared spectroscopy (FTIR). The thermooxidative decomposition of CNR is a two-step reaction. The first step is a reaction of dehydrochlorination of which the reaction order (n) is 1.1, the reaction activation energy (E) increases linearly with the increment of heating rate (B), and the apparent activation energy (Ev) is 101.7kJ/mol. The initial temperature of weight loss Tv=1.29B + 248.7, the final temperature of weight loss Tr=0.86B + 312.4, and the temperature at maximum weight loss ratio Tp = 1.05B + 286.2, Cp which is the decomposition ratio at Tp, is not affected by B, and its average value is 38;, c which is the decomposition ratio at T is also not affected by B, and its average value is 60;. The second step is an oxidative decomposition reaction of the molecular main chain, and the value of n is 1.1, E increases linearly with the increment of B, Ev is 125.0kJ/mol and the relation between B and T is similar to that of the first step, C approaches 100;.
650			_aChlorinated natural rubber
650			_aKinetics
650			_aLatex
650			_aThermooxidative decomposition
700			_aChenkun Guo
700			_aHeping Yu
700			_aJulam Qu
700			_aSidong Li
700			_aYongcai Wei
700			_aZheng Peng
942			_cJS
999			_c69878 _d69878