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Polysilane azide and preparation method thereof

A technology for nitriding polysilane and polysilane, which is applied in the field of polysilane and its preparation, can solve the problems of less active groups, and achieve the effects of low viscosity, non-deformation, and wide application range.

Inactive Publication Date: 2013-06-05
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing polysilane contains few active groups, and provide a kind of azide polysilane and its preparation method

Method used

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  • Polysilane azide and preparation method thereof
  • Polysilane azide and preparation method thereof
  • Polysilane azide and preparation method thereof

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specific Embodiment approach 1

[0011] Embodiment 1: In this embodiment, polysilane azide is prepared from organic solvent, chlorine-terminated polysilane and sodium azide.

[0012] The quality of the chlorine-terminated polysilane described in this embodiment and the volume ratio of organic solvent is 1g:(3mL~10mL); The mass ratio of chlorine-terminated polysilane described in this embodiment and sodium azide is 1:(0.5 ~1).

[0013] The azide group is a high-energy group and a high-reactivity group, which can be used to obtain a series of heterocyclic compounds through cyclization with unsaturated bonds and hydrocarbons, and can be denitrified with trivalent phosphine organics at room temperature to obtain imidophosphine Derivatives; this embodiment successfully introduces azide groups into polysilane, which improves the situation that the practical application of polysilane is limited due to the existence of few active groups.

[0014] The existing chlorine-terminated polysilanes have the problems of vari...

specific Embodiment approach 2

[0015] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the organic solvent is N,N-dimethylformamide or dimethyl sulfoxide. Others are the same as the first embodiment.

specific Embodiment approach 3

[0016] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is: the chlorine-terminated polysilane is prepared from solvent, alkali metal and silane derivative / toluene solution; The silane derivative / toluene solution is prepared by mixing the silane derivative and toluene, and the concentration of the silane derivative in the silane derivative / toluene solution is 0.5g / mL~2g / mL; the mass of the alkali metal and the volume of the solvent The ratio is 1g:(2.5mL~15mL); the mass ratio of the alkali metal to the silane derivative / silane derivative in the toluene solution is 1:(2~9). Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a polysilane azide and a preparation method thereof. The invention relates to polysilane and a preparation method thereof. The invention aims at solving a problem of low active group amount of existing polysilane. The polysilane azide is prepared from an organic solvent, chlorine-capped polysilane, and sodium azide. The preparation method comprises the steps of 1, azidation reaction; 2, separation; and 3, washing and drying treatments. With the steps, polysilane azide is obtained. The polysilane azide and the method are advantaged in that: 1, a situation of restricted actual application of polysilane caused by low active group amount is ameliorated; 2, compared with chlorine-capped polysilane, polysilane azide has the advantages of low viscosity, denaturation resistance, and easy preservation. With the existence of azido group, polysilane azide can be subjected to specific reactions with other substrates, and can be used as a precursor for synthesizing functional high molecules. Therefore, applications of polysilane in the respect of functional materials are widened. The method provided by the invention is mainly used for preparing polysilane azide.

Description

technical field [0001] The invention relates to a polysilane and a preparation method thereof. Background technique [0002] The main chain of polysilane is composed of Si-Si bonds, and the empty 3d orbitals of four-coordinated silicon atoms are prone to σ-σ * Transition, forming a large σ-electron widely delocalized system similar to the π-electron conjugated system. This special structure endows polysilane with unique photoelectric properties. Due to the presence of polysilane obtained by direct polymerization of silane monomers, there are few active groups (active groups refer to groups that can make polysilane as a precursor and complex with other matrices, such as -OH at the end of the polysilane chain), which limits the ability of polysilane Applications in functional materials. Contents of the invention [0003] The purpose of the present invention is to solve the problem that existing polysilanes contain few active groups, and provide an azide polysilane and a p...

Claims

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Application Information

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IPC IPC(8): C08G77/60
Inventor 尚岩王桢桢王东元张桂玲
Owner HARBIN UNIV OF SCI & TECH
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