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| | POLY(DIMETHYLSILANE) Basic information |
| | POLY(DIMETHYLSILANE) Chemical Properties |
| | POLY(DIMETHYLSILANE) Usage And Synthesis |
| Physical properties | The structure of polydimethylsilane crystals has been determined by use of X-ray diffraction measurements and a theoretical diffraction pattern. The crystal structure obtained is monoclinic (a = 0.745 nm, b = 0.724 nm, c = 0.389 nm, and γ = 67.1°), in which the primitive translation vector c correspinds to the period of a one-dimensional silicon backbone having an all-trans conformation. | | Uses | Polydimethylsilane (PDMS) is a precursor of silicon carbide is a pre-ceramic polymer precursor. It has wide application prospects in the areas of photoconductivity, LED, nonlinear optical material and so on, which is the reason it draws people's great attention. | | Reactions | Polycarbosilane was synthesized from polydimethylsilane in the presence of ZSM-5 (Si/Al=30) as a catalyst at 350oC-400oC.
The polycarbosilane (PCS), which is the precursor of SiC fiber, was synthesized under high pressure by thermal decomposition of polydimethylsilane. | | References | [1] XIANGZHEN CHENG. Structure and properties of polycarbosilane synthesized from polydimethylsilane under high pressure[J]. Journal of Applied Polymer Science, 2005, 99 3: 1188-1194. DOI:10.1002/app.22594.
[2] M. BORDEAU. Competitive electrochemical synthesis of polydimethylsilane without solvent[J]. Journal of The Chemical Society, Chemical Communications, 1991, 1 1: 1476-1477. DOI:10.1039/C39910001476.
[3] S. FURUKAWA Kenta T. Structure and orientation of polydimethylsilane films[J]. Solid State Communications, 1993, 87 1: 931-934. DOI:10.1016/0038-1098(93)90732-3. |
| | POLY(DIMETHYLSILANE) Preparation Products And Raw materials |
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