Copolyesters of isosorbide, succinic acid, and isophthalic acid: Biodegradable, high T-g engineering plastics - Université Claude Bernard Lyon 1 Accéder directement au contenu
Article Dans Une Revue Journal of polymer science. Part A-1, Polymer chemistry Année : 2013

Copolyesters of isosorbide, succinic acid, and isophthalic acid: Biodegradable, high T-g engineering plastics

Résumé

Isosorbide, succinyl chloride and isophthaloyl chloride are polycondensed under various reaction conditions. The heating in bulk with or without catalysts as well in an aromatic solvent without catalyst, and polycondensation with the addition of pyridine only yield low molar mass copolyesters. However, heating in chlorobenzene with addition of SnCl2 or ZnCl2 produces satisfactory molar masses. The number average molecular weights (Mn) of most copolyesters fall into the range of 700015,000 Da with polydispersities (PD) in the range of 39. The MALDI-TOF mass spectra almost exclusively displayed peaks of cyclics indicating that the chain growth was mainly limited by cyclization and not by side reactions, stoichiometric imbalance or incomplete conversion. The glass-transition temperatures increased with the content of isophthalic acid from 75 to 180 degrees C and the thermo-stabilities also followed this trend.

Dates et versions

hal-00993086 , version 1 (19-05-2014)

Identifiants

Citer

Saber Chatti, Steffen M. Weidner, Aurélie Fildier, Hans R. Kricheldorf. Copolyesters of isosorbide, succinic acid, and isophthalic acid: Biodegradable, high T-g engineering plastics. Journal of polymer science. Part A-1, Polymer chemistry, 2013, 51 (11), pp.2464-2471. ⟨10.1002/pola.26635⟩. ⟨hal-00993086⟩
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