Mechanistic studies of polysilane synthesis by reductive coupling of dichlorosilanes
For most applications, the oligomer fraction is of little or no value, so it is desirable to shift the course of the reaction to production of as much linear polymer as possible at the expense of the oligomers. For many applications, these low molecular weight polymers are adequate, but for high precision applications, particularly microlithographic ones, low polydispersity materials with molecular weights above the critical molecular weight for chain entanglement at about 30,000 daltons are needed. Studies of the mechanism of the Na-mediated coupling of dichlorosilanes were carried. These studies provide a greater understanding of the reaction and lead to improvements in methods which give polysilanes in higher yields, higher molecular weights, and lower polydispersities than previously obtainable.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6197757
- Report Number(s):
- SAND-85-2538C; CONF-8504190-1; ON: DE86003716
- Country of Publication:
- United States
- Language:
- English
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