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Backbone-assisted reactions of polymers. V. Kinetics of isomerization of poly(chloromethylthiirane) and poly(3-chlorothietane) in solution (1983)

Zussman, Melvin P. ; Tirrell, David A.

New York : Wiley-Blackwell

Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 1417-1422

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ISSN: 0360-6376

Keywords: Physics ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The reversible isomerization of poly(chloromethylthiirane) and poly(3-chlorothietane) represents a new kind of polymer reaction and a new method of copolymer synthesis. In chloroform, in dichloromethane, or in nitrobenzene the reaction is well described by reversible first-order kinetics. A rate increase of ca. 40% on changing the solvent from chloroform to nitrobenzene is consistent with an isomerization mechanism that involves a rate-determining attack of the backbone sulfur atom on the neighboring carbon-chlorine bond and rapid ring-opening of the thiiranium ion intermediate by chloride ion.

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/pol.1983.170210515

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