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Laser-powered homogeneous pyrolysis of 4-silaspiro[3,3]heptane. A source for 2-silaallene and its polymer
被引:20
作者:
Urbanova, M
Volnina, EA
Guselnikov, LE
Bastl, Z
Pola, J
机构:
[1] ACAD SCI CZECH REPUBL,INST CHEM PROC FUNDAMENTALS,CR-16502 PRAGUE,CZECH REPUBLIC
[2] ACAD SCI CZECH REPUBL,J HEYROVSKY INST PHYS CHEM,CR-18223 PRAGUE 8,CZECH REPUBLIC
关键词:
4-silaspiro[3,3]heptane;
2-silaallene;
homogeneous decomposition;
laser;
poly(2-silaallene);
D O I:
10.1016/0022-328X(95)05797-S
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Continuous-wave CO2 laser-photosensitized (SF6) decomposition of 4-silaspiro[3,3]heptane is dominated by the transient formation and polymerization of 2-silaallene. The first experimental evidence for 2-silaallene has been achieved via scavenging with alcohols ROH (R = CH3, CF3CH2) to afford dialkoxy(dimethyl)silanes, (RO)(2)Si(CH3)(2). ESCA analysis of the polymer demonstrates SiC2 stoichiometry and indicates the incorporation of oxygen, which may be explained by reaction of the residual Si=C bonds with air.
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页码:73 / 76
页数:4
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