Accession Number : AD0702840

Title :   PERCHLOROCARBON POLYMERS.

Descriptive Note : Final rept. 7 Apr 66-1 Jun 69,

Corporate Author : DOW CHEMICAL CO MIDLAND MICH

Personal Author(s) : Doorenbos,Harold E.

Report Date : NOV 1969

Pagination or Media Count : 76

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)

Descriptors :   (*HALOCARBON PLASTICS, SYNTHESIS(CHEMISTRY)), CHLORINE COMPOUNDS, POLYMERIZATION, INFRARED SPECTRA, XYLENES, BIPHENYL, CHLORINATION, ALUMINATES, SULFUR COMPOUNDS, DIFFERENTIAL THERMAL ANALYSIS, LAMINATES, SURFACE ACTIVE SUBSTANCES, LUBRICANT ADDITIVES

Subject Categories : Plastics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE