Phase Transfer Catalytic Nucleophilic Addition Reactions: Synthesis of Polymers and Acetylenic Terminated Resins
Abstract
Solid-liquid phase transfer catalysis (SLPTC) was studied to facilitate the preparation of acetylene-terminated (AT) resins. 3-Ethylphenol, as a model system, was found to react with p,p'-difluorobenzophenone and p,p'- difluorodiphenylsulfone in refluxing pyridine using SLPTC to give high yields of the corresponding disubstitution products. However, the p,p'-dichloro derivatives afforded a mixture consisting predominantly of monosubstituted product. 3-Ethynylphenol was reacted under similar conditions to afford AT resins which were compared with AT resins made by conventional synthesis methods. High molecular weight, soluble polyetherether ketones and polysulfones were made by reacting bisphenols and appropriate difluoroaromatic compounds in refluxing pyridine using SLPTC.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 1992
- Accession Number
- ADA254717
Entities
People
- David K. Klapprott
- Ray Kellman