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Pre‐polymerization Kinetics in Continuous and Pulsed Glow Discharge in Tetrafluoroethylene
Author(s) -
Andreeva Alena V.,
Kutsarev Ilya,
Shatsky Alexander V.,
Shterenberg Alexander M.,
Zyn Vladislav I.
Publication year - 2012
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201100204
Subject(s) - tetrafluoroethylene , kinetic energy , kinetics , polymerization , glow discharge , mass spectrometry , chemistry , limiting , analytical chemistry (journal) , materials science , chemical engineering , chemical physics , plasma , chromatography , organic chemistry , polymer , physics , mechanical engineering , quantum mechanics , engineering , copolymer
Abstract Kinetic pictures, i.e., full sets of all available kinetic curves, were obtained with the help of continuous mass spectrometry and analyzed with the purpose of studying some aspects of the mechanism of initial stages of molecular growth in a batch reactor. The kinetic curves were clearly parted into three types—initial, intermediate, and final. All of the new substances are evolving simultaneously and in parallel, independently of their molecular mass, from C 2 to C 18 , what evidences that the fast stepwise or chain reactions of chemical synthesis are preceded by the slow limiting stage of the discharge activation. The method of momentary characteristics is demonstrated which allows to perform a quantitative analysis of the kinetic material even in the difficult cases of batch and modulated systems.