HIGH-TEMPERATURE-RESISTANT PHTHALOCYANINE POLYMERS.
Abstract
PcSi(SCN)2 was prepared from PcSiCl2 and silver thiocyanate. Spectral evidence indicated that the product has the normal configuration (S-bonded) rather than the iso configuration (N-bonded). Two polymeric materials were isolated when equimolar amounts of PcSi(OH)2 and bis(hydroxymethyl)carborane were heated at 400C under nitrogen. Both products appear to be polymers at different molecular weights. It was determined that excess bis(hydroxymethyl)carborane was required to drive the sulfuric acid solution condensation reaction with PcSiCl2 to completion. PcSi(SCN)2 and bis(hydroxymethyl)carborane reacted at 200C to give a numer of different condensation products. One appeared to be a 1:1 condensation product, a second a 2:1 condensation product; and a third a 3:2 condensation product similar to the 3:2 condensation product previously isolated from PcSi(NCO)2 and bis(hydroxymethyl)carborane and appears to be a dicarboranyl ether bonded to a siloxy phthalocyanine. The 3:2 product polymerized by dehydration when heated to 400C in nitrogen. Boric oxide was the main product in air at 400C. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 12, 1965
- Accession Number
- AD0619372