Laser evaporation of some solid organosilicon polymers
作者:
J Pola,
J Vitek,
Yu P Polyakov,
L E Guselnikov,
P M Matveychev,
S A Bashkirova,
J Tläskal,
R Mayer,
期刊:
Applied Organometallic Chemistry
(WILEY Available online 1991)
卷期:
Volume 5,
issue 1
页码: 57-64
ISSN:0268-2605
年代: 1991
DOI:10.1002/aoc.590050108
出版商: John Wiley&Sons, Ltd.
关键词: Laser evaporation;deposition;polysilane;poly(sila‐alkene)
数据来源: WILEY
摘要:
AbstractContinuous wave (cw) CO2laser irradiation of some organosilicon polymers composed of ‐Me2Si‐, ‐Me2SiMe2SiCH2‐, RMeSi‐ and RMeSiMe2SiCH2CH2‐ units (where R = methyl, adamantyl, phenyl and hydrogen) leads to the evaporation of the polymer and is dominated by the formation of a solid deposit that has a continuous structure. It is assumed that chemical changes occur prior to the transfer of ejected material to the gas phase and that these consist mainly of the formation of high molecular biradicals or 1,2‐disilacyclobutane monomer that both re‐polymerize spontaneously upon their deposition onto a nearby cold surface. The mechanism of these specific decompositions of the polymers is assessed on the basis of the IR spectra of the deposits and, for the minor gaseous products, identification by G
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