Improved process for the formation of a copolu00ecmero of poly (1, 4 - dioxan - 2 - one) with a monu00c8mero cu00ecclico ester, process for formation of a copolu00ecmero of poly (1, 4 - dioxan - 2 - one) and a monu00c8mer cu00ecclico ester, process for formation of a copolu00ecmero of poly (1) 4 - dioxan - 2 - one) An ester cu00ecclico mixed with additional ingredients, copolu00ecmero of poly (1, 4 - dioxan - 2 - ona), anhydrous.And copolu00ecmero of poly (1, 4 - dioxan - 2 - one) with a monu00c8mero ester cu00ecclico

摘要

Improved process for the formation of a copolu00ecmero poly (1,4 - dioxan - 2 - one) with a monu00c8mero cu00ecclico ester, process for formation of a copolu00ecmero of poly (L, 4 - dioxan - 2 - one) and a monu00c8mero cu00ecclico ester, process for formation of a copolu00ecmero of poly (L, 4 - dioxan - 2 - one) and a Cu00ecclico ester mixed with additional ingredients, copolu00ecmero poly (1,4 - dioxan - 2 - ona), anhydrous.And copolu00ecmero poly (1,4 - dioxan - 2 - one) with a monu00c8mero ester cu00ecclico is a polymerization process for derivation of a thermally stabilized, copolymer of poly (L, 4 - dioxan - 2 - one) and a cyclic ester monomer using a catalyst / initiator of coordination of INS Eru00e7u00e3o.The L, 4 - dioxan - 2 - one and the cyclic ester monomer containing individually less 100 ppm of water and having an acid value of less than 0.5 mg KOH / g, and preferably less than 0.2 mg KOH / g, are co polymerized:. Preferably, the monomer of the cyclic ester is sym - caprolactone and the reaction occurs in a device of extrusion.