Process for preparing polysilanes

US8513450B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Andreas Bockholt · Munich, DE
• Andreas Feigl · Drensteinfurt, DE
• Bernhard Rieger · Langenau, DE

Key dates

• Filing date: Jun 10, 2010
• Grant date: Aug 20, 2013
• Expiry date: Oct 16, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/60
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides a process for preparing polysilanes of the general formula (1) SinR2n+2 (1), in which silane of the general formula (2) R1mSiH4-m (1a) is converted in the presence of boron compounds of the general formula (3) R23B (3), where R1 is a hydrocarbyl radical having 1 to 18 carbon atoms, R is hydrogen or an R1 radical, R2 is fluorine, chlorine, bromine or a hydrocarbyl radical which has 1 to 18 carbon atoms and may bear substituents selected from fluorine, chlorine, bromine, iodine and NO2, n has integer values from 2 to 100,000, and m is 0, 1 or 2.