PERCHLOROCARBON POLYMERS.
Abstract
The complete chlorination of dialkyl-substituted aromatics has now been achieved on a practical scale in high yield with good conversion. The use of the complex, SCl3(+)AlCl4(-), along with chlorine makes these perchlorocarbons readily available in large quantities on a laboratory scale. The condensation polymerization of the perchlorinated materials (e.g., perchloro-p-xylene, perchloro-p-bitolyl) via reductive dechlorination was carried out with a dialkyl hydrogen phosphonate in the presence of a catalytic amount of cuprous chloride. This procedure gave higher molecular weight polymers than those obtained by the stannous chloride procedure. Structural variations in the homo and copolymers resulted in solubility changes. All polymers were glassy and friable. When the soluble polymers were cured at 400C, however, insolubilization occurred and the polymers developed improved thermal stability and strength. Certain preliminary application tests showed potential uses as: (1) high temperature laminating resins; (2) extreme pressure additives for lubricating oils; (3) water-insoluble, fire-retardant, fiber-reactive materials; and (4) biologically active compounds having limited uses. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1969
- Accession Number
- AD0702840
Entities
People
- Harold E. Doorenbos