Accession Number:

ADA183441

Title:

Synthetic Routes to Oligo- and Polysilazanes. Polysilazane Precursors to Silicon Nitride.

Descriptive Note:

Technical rept.,

Corporate Author:

SRI INTERNATIONAL MENLO PARK CA

Personal Author(s):

• Laine,Richard M.
• Blum,Yigal D.
• Tse,Doris
• Glaser,Robert

Report Date:

1987-01-01

Pagination or Media Count:

21.0

Abstract:

Organometallic polymer precursors offer the potential to manufacture shaped forms of advanced ceramic materials using low temperature processing. Polysilazanes, compounds containing Si-N bonds in the polymer backbone, can be used as precursors to silicon nitride containing ceramic materials. This chapter provides an overview of the general synthetic approaches to polysilazanes with particular emphasis on the synthesis of preceramic polysilazanes. The latter part of the chapter focusses on catalyzed dehydro-coupling reactions as a route to polysilazanes. Keywords Polysilazanes Preceramic polymers Bond activation catalysis Silanes Ammonia Amines Silicon.

Descriptors:

• *CERAMIC MATERIALS
• *ORGANOMETALLIC COMPOUNDS
• *POLYMERS
• *SILANES
• AMMONIA
• PRECURSORS
• SILICON NITRIDES
• SILICON
• AMINES
• ACTIVATION
• BONDING
• CATALYSIS
• SYNTHESIS(CHEMISTRY)

Subject Categories:

• Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE