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Chemical Structure| 307531-94-8 Chemical Structure| 307531-94-8

Structure of 307531-94-8

Chemical Structure| 307531-94-8

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Product Details of [ 307531-94-8 ]

CAS No. :307531-94-8
Formula : C35H74O14Si8
M.W : 943.64
SMILES Code : CC(C(OCCC[Si]1(O2)O[Si]3(CC(C)C)O[Si]4(CC(C)C)O[Si]5(CC(C)C)O[Si](O3)(CC(C)C)O[Si]2(CC(C)C)O[Si](O5)(CC(C)C)O[Si](O4)(CC(C)C)O1)=O)=C
MDL No. :MFCD02683452

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Application In Synthesis of [ 307531-94-8 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 307531-94-8 ]

[ 307531-94-8 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 307531-92-6 ]
  • [ 2530-85-0 ]
  • [ 307531-94-8 ]
YieldReaction ConditionsOperation in experiment
triethylamine; In methanol; toluene; at 25℃; for 6h;Industry scale; In a three-necked glass flask fitted with a reflux condenser and a dropping funnel, 2.0 kg of heptaisobutyl-heptasilsesquioxane-trisilanol (R=iBu, XOH in the general formula (2)) was dissolved in a mixed solvent composed of 2.33 kg of toluene and 2.33 kg of methanol, and 50 g of triethylamine was added. Then, 0.628 kg of methacryloxypropyltrimethoxysilane was added thereto at room temperature. The mixture was stirred at room temperature (about 25 C.) for 6 hours. Then, the solvents, methanol and toluene, were evaporated at 400 kPa under heating on a water bath at 50 C. to obtain a solution having a cage silsesquioxane compound concentration of 60 wt %. The viscosity of the resulting solution was 20 cp at 23 C. From GC of the solution, it was found that the cage silsesquioxane compound solution contains 32 wt % of toluene and 8 wt % of methanol. The solution was introduced at 4 kg/h into a thin-film distillation machine whose jacket temperature was 80 C. and whose degree of reduced pressure was set at 20 kPa and 2104 g of a white powder was obtained. The average particle size thereof was 0.62 mm. The content of lumps having a size of 5 mm or more was 0 wt %. When the resulting white powder was analyzed by 1H and 29SiNMR, peaks characteristic to heptaisobutyl-(methacryloxypropyl)octasilsesquioxane (compound E) (1H:ppm, 0.58 ppm, 0.65 ppm, 0.94 ppm, 1.76 ppm, 1.84 ppm, 1.93 ppm, 4.09 ppm, 5.52 ppm, 6.08 ppm; 29Si: -68.0 ppm, -68.2 ppm, -68.3 ppm) were obtained. From GC analysis, in the resulting white powder, it was found that the content of toluene was 0.2 wt % and the content of methanol was 0.1 wt % or less. In addition, ESI-MS (Positive) of the resulting white powder was measured and m/z=944 [M+H]+ was obtained. From DSC measurement of the resulting white powder, the softening start temperature was found to be 112 C.
 

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