Pyrolysis of hexamethyldisiloxane (HMDS) and its copyrolysis with chlorotrimethylsilane and tetrachlorosilane were studied. Based on the data of GLC analysis and on the mass spectrum of the condensate obtained after the pyrolysis of HMDS, it was concluded that HMDS acts as a source of dimethylsilanone. The results of the copyrolysis of HMDS with chlorotrimethylsilane used as a trapping reagent indicate that the dimethylsilanone generated from HMDS can be inserted into the Si-Cl and Si-O bonds. In the copyrolysis of HMDS with tetrachlorosilane serving as a trapping reagent for dimethylsilanone, both dimethylsilanone and dichlorosilanone are generated.
Chernyshev,Krasnova,Sergeev,Abramova
p. 1586 - 1589
(2007/10/03)
1,1,1-Trimethyl-3,3,3-trichlorodisiloxane as a source and a trapping agent for silanones
The pyrolysis of 1,1,1-trimethyl-3,3,3-trichlorodisiloxane (1) was studied and its mechanism involving the formation of dichloro-and dimethylsilanones was proposed. The composition of the condensate from the co-pyrolysis of siloxane 1 and hexamethyldisiloxane indicated that under the pyrolysis conditions the simplest siloxanes can be both the sources and the trapping agents of silanones.
Krasnova,Chernyshev,Sergeev
p. 1238 - 1239
(2007/10/03)
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