POLYSILANE COMPOUND AND ITS PRODUCTION

PURPOSE:To obtain a polysilane compound having excellent heat resistance and flame retardancy and good moldability by reacting 1,2-dichlorosilane with dilithiobenzene in equivalent amounts. CONSTITUTION:A polysilane compound of formula III is obtained by reacting a 1,2-dichlorosilane of formula I wi...

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Hauptverfasser:	TAKEMURA KENJI, ASUKE TETSUYA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a polysilane compound having excellent heat resistance and flame retardancy and good moldability by reacting 1,2-dichlorosilane with dilithiobenzene in equivalent amounts. CONSTITUTION:A polysilane compound of formula III is obtained by reacting a 1,2-dichlorosilane of formula I with dilithiobenzene of formula II in equivalent amounts. In the formulae, R , R , R and R are each alkyl, aryl or aralkyl; and n is 2 or above. Although the above reaction can be performed in the presence or absence of a solvent, it is usually performed in a liquid phase in the presence of a solvent. The molecular weight of the polysiloxane is 5X10 to 5X10 , desirably 1X10 to 1X10 . This polysiloxane can be used as a conductive material, a nonlinear optical material, a photoresist material, a photoradical initiator, a UV absorber or a selective gas separation membrane material as well as a heat-resistant material or a flame-retarding material.