EP0506425A2
Expired / Lapsed
EP
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Polysilane monomolecular film and polysilane built-up film
Assignee: Toshiba Corp
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Filing: 1992-03-26
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Granted: —
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Expires: 2012-03-26
Abstract
Abstract Disclosed are a polysilane monomolecular film and a polysilane built-up fllm formed by building up a plurality of said monomolecular films, said monomolecular film consisting of a polysilane having a repeating unit represented by general formula (1) given below: where, R¹ represents a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms or a substituted or unsubstituted aryl group having 6 to 24 carbon atoms, R² represents a divalent hydrocarbon group having 1 to 24 carbon atoms which can be substituted, and X represents hydroxyl group, amino group, carboxyl group, or a hydrophilic group having at least one selected from the group consisting of hydroxyl group, amino group, carboxyl group, amide linkage, easter linkage, carbamate linkage and carbonate bond. The polysilane monomolecular film and built-up film can be formed on a substrate by an LB technique. In the films, the molecules of the polysilane having the repeating unit (1), that is, the Si-Si backbones are oriented in a fixed direction.
Inventors
- 👤 Shuji c/o Intellectual Property Div. Hayase
- 👤 Yoshihiko C/O Intellectual Property Div. Nakano
- 👤 Yukihiro C/O Intellectual Property Div. Mikogami
- 👤 Akira c/o Intellectual Property Div. Yoshizumi
- 👤 Shinji c/o Intellectual Property Div. Murai
- 👤 Rikako c/o Intellectual Property Div. Kani
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 04:58
CPC Classifications
B; B82; B82Y; B82Y30/00; C; C09; C09D; C09D183/00; C09D183/16; B05; B05D; B05D1/00; B05D1/18; B05D1/20; B05D1/202; B82Y40/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/261
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
A polysilane monomolecular film comprising a polysilane having a repeating unit represented by general formula (1) given below: where, R¹ represents a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms or a substituted or unsubstituted aryl group having 6 to 24 carbon atoms; R² represents a divalent hydrocarbon group having 1 to 24 carbon atoms which can be substituted; and x represents hydroxyl group, amino group, carboxyl group, or a hydrophilic group having at least one selected from the group consisting of hydroxyl group, amino group, carboxyl group, amide linkage, ester linkage, carbamate linkage and carbonate linkage.
Claim 2
Dependent Claim
79 words
The polysilane monomolecular film according to claim 1, characterized in that said monomolecular film is an LB monomolecular film formed by a process comprising the steps of dissolving the polysilane having the repeating unit (1) in an organic solvent, dripping the resultant solution onto a liquid material so as to permit the solution to be spread on the surface of the liquid material and, thus, to form a monomolecular film, and transferring said monomolecular film onto a predetermined substrate.
Claim 3
Dependent Claim
76 words
The polysilane monomolecular film accordlng to claim 1 or 2, characterized in that x included in the repeating unit (1) is hydroxyl group or a hydrophilic group having hydroxy group, and said polysilane is synthesized by a process comprising the steps of carrying out a polycondensation reaction between a dichlorosilane derivative having a hydroxyl group protected by a silyl group and metallic sodium within an organic solvent, and removing the protective group by means of hydrolysis.
Claim 4
Dependent Claim
114 words
A polysilane built-up film formed by building up a plurality of polysilane monomolecula± films, each of said monomolecular fiLm3 comprising a polysilane having a repeating unit ±epresented by general formula (1) given below: where, R¹ represents a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms or a substituted or unsubstituted aryl group having 6 to 24 carbon atoms; R² represents a divalent hydrocarbon group having 1 to 24 carbon atoms which can be substituted; and X represents hydroxyl group, amino group, carboxyl group, or a hydrophilic group having at least one selected from the group consisting of hydroxyl group, amino group, carboxyl group, amide linkage, ester linkage,carbamate linkage and carbonate linkage.
Claim 5
Dependent Claim
80 words
The polysilane built-up film according to claim 4, characterized in that said built-up film is an LB built-up film formed by a process comprising the steps of disso1viD4 the polysilane having the repeating unit (1) in an organic solvent, dripping the resultant solution Into a Ilquld material so as to spread the solution on the surface of the liquid material and, thus, to form a monomolecular film, and building up a plurality of said monomoLecular films on a predetermined substrate.
Claim 6
Dependent Claim
78 words
The polysilane built-up film according to claim 4 or 5, characterized in that X included in the repeating unit (1) is a hydroxyl group or a hydrophilic group having a hydroxyl group, and said polysilane is synthetized by a process comprising the steps of carrying out a polycondensation reaction between a dichlorosilane derivative having a hydroxyl group protected by a silyl group and metallic sodium within an organic solvent, and ±emovlng the protective group by means of hydrolysis.
Claim 7
Dependent Claim
151 words
An organic thin film element comp±ising a monomolecular film or built-up film of a polysilane having a repeating unit represented by general formula (1) given below and an organic thin film containing an organic molecule capable of performing an electronic mutual function together with the Si-Si backbone of said polysilane, said polysilane film and organic film being laminated one upon the other in arbitrary order on a predetermined substrate: where, R¹ represents a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms or a substituted or unsubstituted aryl group having 6 to 24 carbon atoms; R² represents a divalent hydrocarbon group having 1 to 24 carbon atoms which can be substituted; and X represente hydroxyl group, amino group, carboxyl group, or a hydrophilic group having at least one selected from the group consisting of hydroxyl group, amino group, carboxyl linkage, amide linkage, ester linkage, carbamate linkage and carbonate linkage.
Claim 8
Dependent Claim
96 words
The organic thin film element according to claim 7, characterized in that said monomolecuar film or built-up film of the polysilane is an LB monomolecular film or an LB built-up film formed by a process comprising the steps of dissolving the polysiLane having the repeating unit (1) in an organic solvent, dripping the resultant solution onto a liquid material so as to spread the solution on the surface of the liquid material and, thus, to form a monolecular film, and transferring said monomolecular film or building up a plurality of said monomolecular films onto said substrate.
Claim 9
Dependent Claim
77 words
The organic thin film element according to claim 7 or 8, characterized in that X included in the repeating unit (1) is hydroxyl group or a hydrophilic group having hydroxyl group, and said polysilane is synthesized by a process comprising the steps of carrying out a polycondensation reaction between a dichlorosilane derivative having a hydroxyl group protected by a silyl group and metallic sodium within an organic solvent, and ±emoving the p±otective g±oup by means of hydrolysis.
References Cited (Backward Citations)
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