Anionic Polymerization of Siloxanes Non-Trivial Model System for Studies of Common Phenomena

A kinetic study of the anionic polymerization of dodecamethylcyclohexasiloxane (D6) has been carried out in toluene at 25°C with the cryptate Li+ + [211] as the counterion. The rate constants of propagation of D6 and of the formation of cyclic oligomers have been determined. The results are in good agreement with those reported previously for the anionic polymerization of D3 and D4 under the same conditions. The rate constants of propagation and of formation of D6 have been found to be equal to 1.1 l‐mol−1.h−1 and 0.05 h−1, respectively. In the case of the anionic polymerization of cyclosiloxanes with Li+ + [211] as the counterion, the order of reactivities of Dx as a function of × is as follows:

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Side Group Modified Polysiloxanes

Boutevin

Guida‐Pietrasanta

Ratsimihety

2000

Silicon-Containing Polymers

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Anionic Polymerization of Siloxanes Non-Trivial Model System for Studies of Common Phenomena

Cited by 5 publications

References 19 publications

Kinetics of polymerization involving reversible deactivation due to aggregation of active centers. Analytical vs. numerical solution for the ε‐caprolactone/dialkylaluminium alkoxide system

Kinetics of polymerization involving reversible deactivation due to aggregation of active centers. Analytical vs. numerical solution for the ε‐caprolactone/dialkylaluminium alkoxide system

Anionic polymerization of dodecamethyl‐cyclohexasiloxane (D₆) with lithium cryptate as a counterion

Side Group Modified Polysiloxanes

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Anionic Polymerization of Siloxanes Non-Trivial Model System for Studies of Common Phenomena

Cited by 5 publications

References 19 publications

Kinetics of polymerization involving reversible deactivation due to aggregation of active centers. Analytical vs. numerical solution for the ε‐caprolactone/dialkylaluminium alkoxide system

Kinetics of polymerization involving reversible deactivation due to aggregation of active centers. Analytical vs. numerical solution for the ε‐caprolactone/dialkylaluminium alkoxide system

Anionic polymerization of dodecamethyl‐cyclohexasiloxane (D6) with lithium cryptate as a counterion

Side Group Modified Polysiloxanes

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Product

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Anionic polymerization of dodecamethyl‐cyclohexasiloxane (D₆) with lithium cryptate as a counterion