Linear form of polyphenylsilsesquioxanes

Июль 30, 2022

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Linear form of polyphenylsilsesquioxanes

Содержание

2. Polyphenylsilsesquioxanes Main advantages: High thermal stability Х-ray resistance Solubility in general organic solvents High refractive index
3. General types of Polyphenylsilsesquioxanes Random structure Ladder-like structure Cage-like structure
4. Previous work: Rebrov E.A., Muzafarov A.M. Monosodiumoxyorganoalkoxysilanes: Synthesis and properties, Heteroat. Chem., 2006, 17, 6, 514–
5. Side reaction:
6. Method for obtaining of linear Polyphenylsilsesquioxane 29Si NMR-spectrum (in DMSO-d6) of product of hydrolysis sodium phenyl(diethoxy)silanolate
7. Obtaining of linear polyphenylsilsesquioxane and investigating of products reaction a c d b a b c
8. Summary: - Sodium polyphenylsilsqiuoxane was obtained by reaction sodium phenyl(diethoxy)silanolate with water - Investigating of products
9. Thank you for attention!
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Слайд 2

Polyphenylsilsesquioxanes
Main advantages:
High thermal stability
Х-ray resistance
Solubility in general organic solvents
High refractive index
Applications:
Heat-resistant

coatings
Materials for optoelectronics
Protective coatings for electronic devices
Hydrophobic coatings

Слайд 3

General types of Polyphenylsilsesquioxanes
Random structure
Ladder-like structure
Cage-like structure

Слайд 4

Previous work:
Rebrov E.A., Muzafarov A.M. Monosodiumoxyorganoalkoxysilanes: Synthesis and properties, Heteroat. Chem.,

2006, 17, 6, 514– 541.
M. A. Obrezkova, N. G. Vasilenko, V. D. Myakushev and A. M. Muzafarov, Polym. Sci. Ser. B, 2009, 51, 457–464.
M. A. Obrezkova, A. A. Kalinina, I. V. Pavlichenko, N. G. Vasilenko, M. V. Mironova, A. V. Semakov, V. G. Kulichikhin, M. I. Buzin, and A. M. Muzafarov, Silicon 2014, 7, 2, 177–189

Слайд 5

Side reaction:

Слайд 6

Method for obtaining of linear Polyphenylsilsesquioxane
29Si NMR-spectrum (in DMSO-d6) of product

of hydrolysis sodium phenyl(diethoxy)silanolate

Слайд 7

Obtaining of linear polyphenylsilsesquioxane and investigating of products reaction
a
c
d
b
a
b
c
29Si NMR-spectrum

(in CDCl3) of product of interaction of sodium phenyl(diethoxy)silanolate with Me3SiCl

1H NMR-spectrum (in CDCl3) of product of interaction of sodium phenyl(diethoxy)silanolate with Me3SiCl

GPC - curve of product of interaction of sodium phenyl(diethoxy)silanolate with Me3SiCl

Ratio of SiPh/SiMe3 about 1/1

Слайд 8

Summary: - Sodium polyphenylsilsqiuoxane was obtained by reaction sodium phenyl(diethoxy)silanolate with water -

Investigating of products reaction polysodium phenylsilsesqioxane with trimethylchloresilane was observe what it contain linear and cyclic molecules

Слайд 9

Linear form of polyphenylsilsesquioxanes

Содержание

PolyphenylsilsesquioxanesMain advantages:High thermal stabilityХ-ray resistanceSolubility in general organic solventsHigh refractive indexApplications:Heat-resistant

General types of PolyphenylsilsesquioxanesRandom structureLadder-like structureCage-like structure

Previous work:Rebrov E.A., Muzafarov A.M. Monosodiumoxyorganoalkoxysilanes: Synthesis and properties, Heteroat. Chem.,

Side reaction:

Method for obtaining of linear Polyphenylsilsesquioxane29Si NMR-spectrum (in DMSO-d6) of product

Obtaining of linear polyphenylsilsesquioxane and investigating of products reaction acdbabc29Si NMR-spectrum