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RESEARCH PRODUCT

An Easy Way Towardɛ-Caprolactone Macromonomers by Microwave Irradiation Using Early Lanthanide Halides as Catalysts

A. LoupyDenise Barbier-baudryAdina CretuClaire-hélène BrachaisDidier Stuerga

subject

chemistry.chemical_classificationLanthanideMaterials sciencePolymers and PlasticsOrganic ChemistryDispersityDiethylene glycolHalidePolymerMacromonomerRing-opening polymerizationchemistry.chemical_compoundchemistryPolymer chemistryMaterials ChemistryCaprolactone

description

Poly(e-caprolactone) macromonomers were synthesized under microwave irradiation from commercial caprolactone, using commercial hydrated lanthanide halides as catalysts. The molecular weight of the polymers was in the range 3 000–5 000. Higher molecular weights (5 000–20 000) and lower polydispersity indices were obtained with THF adducts of the lanthanide halides as catalysts and also by applying longer reaction times or using diethylene glycol as a coupling reagent.

https://doi.org/10.1002/1521-3927(20020201)23:3<200::aid-marc200>3.0.co;2-g