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CONTINUOUS-WAVE CO2 LASER-INDUCED CHAIN-REACTION OF 1,2-DICHLOROETHANE
MA, PH; LIU, JL; CHEN, GC; CHU, MX; JING, Y; WU, B
1993-12-07
发表期刊JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS
卷号89期号:23页码:4171-4176
文章类型Article
摘要The chain reaction of 1,2-dichloroethane induced by a CW CO2 laser has been studied in the presence of SF6 as a sensitizer. Vinyl chloride and hydrogen chloride are the main products. The photosensitized decomposition of 1,2-dichloroethane mainly depends on the irradiated laser frequency and is governed by the excitation of the vibrational mode and collisional energy transfer. Arrhenius plots show two distinct regimes, corresponding to the respective activation energies: 96.3 kJ mol-1 for the low-temperature regime and 50.2 kJ mol-1 for the high-temperature regime. The inhibiting and promoting effects of propene and chlorine, respectively, on the chain reaction are examined. The kinetics proposed for the chain reaction are in agreement with the observed data, and mechanisms for molecular excitation and intramolecular energy transfer have been discussed. By using an IR laser, active centres can be generated, and initiation and propagation of a chain reaction at lower temperatures than is possible thermally can be achieved. This may be a way to decrease the energy expenditure and reduce the number of by-products in the chain reaction.
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]KINETICS ; DECOMPOSITION ; DEHYDROCHLORINATION ; MECHANISMS ; MOLECULES
收录类别SCI
语种英语
WOS研究方向Chemistry ; Physics
WOS类目Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:A1993ML55300004
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6389
专题青海盐湖研究所知识仓储
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MA, PH,LIU, JL,CHEN, GC,et al. CONTINUOUS-WAVE CO2 LASER-INDUCED CHAIN-REACTION OF 1,2-DICHLOROETHANE[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS,1993,89(23):4171-4176.
APA MA, PH,LIU, JL,CHEN, GC,CHU, MX,JING, Y,&WU, B.(1993).CONTINUOUS-WAVE CO2 LASER-INDUCED CHAIN-REACTION OF 1,2-DICHLOROETHANE.JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS,89(23),4171-4176.
MLA MA, PH,et al."CONTINUOUS-WAVE CO2 LASER-INDUCED CHAIN-REACTION OF 1,2-DICHLOROETHANE".JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS 89.23(1993):4171-4176.
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