Regiochemistry of Polysilanes Prepared by Ring Opening Polymerization
Abstract
A series of cyclotetrasilanes bearing varying numbers of methyl and phenyl substituents Me(n)Ph(8-n)Si4, have been prepared and characterized using (1)H, (13)C, and (29)Si NMR spectroscopy. The cyclotetrasilanes were polymerized employing silyl cuprates as initiators resulting in monomodal polysilanes with interesting regiochemistries. The regiochemistry of the polymerizations was studied by (29)Si NMR spectra of the polymers. The polymers resulting from ring opening polymerization of Me3PH5Si4, Me5Ph3Si4, and Me6Ph2Si4 showed absorbance maxima, Lambda sub max = 343, 332, and 328 nm, respectively.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1994
- Accession Number
- ADA281041
Entities
People
- Eric Fossum
- Krzysztof Matyjaszewski
Organizations
- Carnegie Mellon University