Accession Number:

AD0840101

Title:

POLYMERIZATION STUDIES LEADING TO HIGH-STRENGTH, CHEMICAL-RESISTANT ELASTOMERS SERVICEABLE AT TEMPERATURE EXTREMES

Descriptive Note:

Final rept. 30 Nov 1964-29 Nov 1967

Corporate Author:

UNIROYAL INC WAYNE NJ RESEARCH CENTER

Report Date:

1968-02-01

Pagination or Media Count:

102.0

Abstract:

The findings of a three-year program of research on the polymerization of fluorinated monomers to form high polymers having random or stereospecific microstructure are described. The objective of this program was the preparation of new elastomeric materials which might be both oil-and chemical-resistant and which might have useful rubbery properties over a wide range of temperatures such as -65 to 300 C. The initial approach was to apply to several easily-procurable fluorinated olefins some of the stereospecific catalyst systems previously developed for hydrocarbon olefins. Apparatus was constructed for handling the volatile monomers and screening potential polymerization catalysts. The monomers tested included olefins and acetylenes which might undergo, 1,2-polymerization, cyclobutenes and norbornenes which might participate in ring-opening polymerization, and conjugated dienes for which several potential polymerization processes are possible. In addition to monomer type, a number of other polymerization variables were explored including the catalyst type, whether cationic, anionic coordination of free radical the transition metal of the catalyst the olefin complexing power of the catalyst solvent temperature and monomer ratio in copolymerizations.

Subject Categories:

  • Physical Chemistry
  • Polymer Chemistry
  • Elastomers and Rubber

Distribution Statement:

APPROVED FOR PUBLIC RELEASE