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“Coordination-insertion” ring-opening polymerization of 1,4-dioxan-2-one and controlled synthesis of diblock copolymers with ε-caprolactone

✍ Scribed by Jean-Marie Raquez; Philippe Degée; Ramani Narayan; Philippe Dubois


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
123 KB
Volume
21
Category
Article
ISSN
1022-1336

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✦ Synopsis


DSC thermogram of P(DX-b-CL) obtained after a polymerization time of 3.8 h (A) and 39.9 h (B) (see Tab. 2; heating rate: 10 8C/min under N 2 flow, 2 nd scan). much indebted to F.R.I.A. (Fonds pour la Formation a `la Recherche dans l'Industrie et dans l'Agriculture).


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To avoid the harmful effects of metallic residues in poly(1,4-dioxan-2-one) (PPDO) for medical applications, the enzymatic polymerization of 1,4-dioxan-2-one (PDO) was carried out at 60 °C for 15 h with 5 wt % immobilized lipase CA. The lipase CA, derived from Candida antarctica, exhibited especiall