Isomeric Poly(benzophenone)s: Synthesis of Highly Crystalline Poly(4,4'- benzophenone) and Amorphous Poly(2,5-benzophenone), a Soluble Poly(p-phenylene) Derivative
Abstract
Nickel-catalyzed polymerization which employs the coupling of isomeric dichlorobenzophenones is described. The polymerization utilizes inexpensive readily available monomers, 4,4'-dichlorobenzophenone (4,4'-DCBP) and 2,5-dichlorobenzophenone (2,5-DCBP). The poly(4,4'-benzophenone) can be derivatized to be soluble during the synthesis by the use of a ketimine precursor that is subsequently hydrolyzed to give the target material. The polymerization of 2,5-dichlorobenzophenone yields a soluble derivative of poly(p-phenylene). The resulting polymers were characterized to confirm the composition, molar mass, and thermal properties. The Ni(O) catalyzed route proves to be facile and economically feasible and opens the way to a large variety of heterocyclic and phenyl-based homo- and copolymers. 4,4'- dichlorobenzophenone, Hydrolyzed, Molar mass, Thermal.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 15, 1994
- Accession Number
- ADA277261
Entities
People
- E. T. Samulski
- J. M. Desimone
- R. W. Phillips
- V. V. Sheares
Organizations
- University of North Carolina at Chapel Hill