Novel poly(monoperoxycarbonates)

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 409/00 (2006.01) C07C 407/00 (2006.01) C07C 409/38 (2006.01) C07H 15/08 (2006.01) C08F 4/36 (2006.01) C08F 4/38 (2006.01) C08F 8/00 (2006.01) C08K 5/14 (2006.01)

Patent

CA 2232361

Poly(monoperoxycarbonates) of general structure A, (see above formula) where R, R1 and n are defined herein, e.g., 1,1,1-tris(t--butylperoxycarbonyloxymethyl)ethane, intermediates for their preparation as well as processes for their preparation and use are disclosed. These monoperoxycarbonates are useful in initiating the polymerization of ethylenically-unsaturated monomers, particularly styrene, curing of unsaturated polyester resins, and in modifying the molecular weight of polymers, e.g., by cross-linking or controlled chain degradation.

L'invention concerne de nouveaux poly(monoperoxycarbonates) ayant la structure générale suivante (A), où R, R<1> sont définis dans le résumé de cette invention comme 1,1,1-tris(t-butylperoxycarbonyloxyméthyl)éthane, des intermédiaires servant à leur préparation et des procédés de leur préparation et de leur utilisation. On peut utiliser les composés à base de monoperoxycarbonates dans le déclenchement de la polymérisation de monomères non saturés d'éthylène, notamment du styrène, dans la cuisson de résines polyester insaturées ainsi que dans la modification du poids moléculaire de polymères, par exemple, par réticulation ou par dégradation de chaîne contrôlée.

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