Three-arm poly(e-caprolactone) by extrusion polymerization

[en] Three-arm poly (e-caprolactone, reactive extruded) (REX-PCL) polymer was continuously produced using a twin-screw extruder with aluminum tri-sec butoxide (ATSB) initiator in residence times of less than five minutes. Monomer conversions in excess of 95% were achieved, and high molecular weight PCL was produced. The number average molecular weight of each arm of REX-PCL ranged from 30,000 to 200,000 g/mol. A screw configuration comprising entirely of conveying elements was most effective in the extrusion polymerization process. The REX-PCL polymer was characterized using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and intrinsic viscosity measurements.

Disciplines :

Chemistry

Author, co-author :

Balakrishnan, Sunder

Krishnan, M.

Narayan, R.

Dubois, Philippe ; Université de Mons > Faculté des Sciences > Matériaux Polymères et Composites

Language :

English

Title :

Three-arm poly(e-caprolactone) by extrusion polymerization

Publication date :

01 March 2006

Journal title :

Polymer Engineering and Science

ISSN :

0032-3888

eISSN :

1548-2634

Publisher :

John Wiley & Sons, Hoboken, United States - New Jersey

Volume :

Issue :

Pages :

235-240

Peer reviewed :

Peer Reviewed verified by ORBi

Research unit :

S816 - Matériaux Polymères et Composites

Research institute :

R400 - Institut de Recherche en Science et Ingénierie des Matériaux

Commentary :

Publié en ligne le 23 janvier 2006 Lecture en ligne: http://onlinelibrary.wiley.com/doi/10.1002/pen.20344/pdf

Available on ORBi UMONS :

since 10 July 2010

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