Process for producing halogen-terminated polysulfide polymers

Details Process for producing halogen-terminated polysulfide polymers Process for producing halogen-terminated polysulfide polymers

1977-09-28

1978-11-07

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528231, 528404, 528373, C07C14912

Patent

active

041246454

ABSTRACT:
High molecular weight polysulfide polymers are produced by a novel process using polythiodiglycol, polymerizing it with an acid catalyst and with means for removing the water of reaction to make a medium molecular weight halogen-terminated polymer. The resultant halogen-terminated polymer may then be reacted with sodium polysulfide to form a latex dispersion of very high molecular weight. The dispersion may then be converted to --SH terminated polymers by the usual methods.

REFERENCES:
patent: 2484369 (1949-10-01), Ballard et al.
patent: 2527375 (1950-10-01), Fettes et al.
patent: 2582605 (1952-01-01), Richter et al.
patent: 3258495 (1966-06-01), Le Fave
E. Fettes, Chemical Reactions of Polymers, 1964, pp. 895, 896, 905, 906.
N. Kharasch, Organic Sulfur Compounds, 1961, vol. 1, pp. 266-279.
E. Reid, Organic Chemistry of Bivalent Sulfur, Vol. II, p. 242, 1960.

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