Technology based on Ge and Si

Bis(trichlorsilil)acetelyne

Cl₃SiC≡CSiCl₃                                 Si₂C₂Cl₆

№	Parameters	Characteristics	Method
1	Appearance, color	Transparent liquid from colorless to light yellow	Industrial standard 20841.1-75
2	Odor	Strong smell (due to the release of hydrogen chloride)	Industrial standard 20841.1-75
3	The content of base material %, not less than	97	Industrial standard 20841.7-75 Industrial standard 20841.8-79

 

Basic physical and chemical properties

Boiling point - 173-174°С

Melting temperature - 23-24°С

Upon contact with water, there is a rapid reaction of hydrolysis of Si-Cl bonds, accompanied by the release of hydrogen chloride.

Applications: It is used for the synthesis of silyl-containing norbornadienes-monomers to produce high-performance gas separation membranes.

It can be used as a modifier of Organoelement oligomers and polymers (for the introduction of unsaturated fragments into the structure).

Application examples:

• new silyl-containing norbornadienes have been obtained at the Topchiev Institute of Economics of the Russian Academy of Sciences on the basis of bistrichlorosilyl acetylene, which are of interest both in terms of scientific study and in the applied aspect.
  
  β,β-Dichlorophenyltrichlorosilane

Cl₃SiCH=CCl₂ Si₁C₂H₁Cl₅

№	Parameters	Characteristics	Method
1	Appearance, color	Transparent liquid from colorless to light yellow	Industrial standard 20841.1-75
2	Odor	Strong smell (due to the release of hydrogen chloride)	Industrial standard 20841.1-75
3	The content of base material %, not less than	97	Industrial standard 20841.7-75 Industrial standard 20841.8-79

Basic physical and chemical properties

Boiling point - 162-163°С

Reflective index (n_D²⁰) - 1,4945

Density (d₄²⁰) - 1,5523

Upon contact with water, there is a rapid reaction of hydrolysis of Si-Cl bonds, accompanied by the release of hydrogen chloride.

Applications: It is used to produce high-performance fast-acting cross linking agents of silicone rubbers with terminal hydroxyl groups.

It can be used as a modifier of Organoelement oligomers and polymers (for the introduction of siloxane links with dichlorvinyl groups into the structure).

Application examples:

- at the pilot plant of GNIIChTEOS the technology for obtaining the product 103-310 has been worked out (a mixture of β,β-dichlorvinyltrichlorosilane and bistrichlorosilyl acetylene), and based on it, a new cross linking high-performance cross linking agent-product 103-311 (a mixture of β,β-dichlorvinyltrisacetoxymoxylane and bis(trisacetoxymoxylyl)acetylene's), β-chlorovinyldichloroarsine. When using this product, the vulcanization rate (compared to traditional vinyltrisacetoxymooxylane) increases by more than 10 times.

Perchlorvinyltrichlorosilane

Cl₃SiCCl≡CCl₂ Si₁C₂Cl₆

№	Parameters	Characteristics	Method
1	Appearance, color	Transparent liquid from colorless to light yellow	Industrial standard 20841.1-75
2	Odor	Strong smell (due to the release of hydrogen chloride)	Industrial standard 20841.1-75
3	The content of base material %, not less than	97	Industrial standard 20841.7-75 Industrial standard 20841.8-79

Basic physical and chemical properties

Boiling point - 189-191°С

Reflective index (n_D²⁰) - 1,5186

Density (d₄²⁰) - 1,6766

Upon contact with water, there is a rapid reaction of hydrolysis of Si-Cl bonds, accompanied by the release of hydrogen chloride.

Applications: 

Application examples

- in laboratory conditions, solid, soluble, stable during storage silsesquioxanes (Cl₂C=CClSiO_1.5)_n were obtained, suitable for use as a photoresist material of positive or negative type, depending on the technology of forming a resistive image.