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Surface Functionalization of Polylactic Film with N-vinylcaprolactam using Photoinduction Process

Published online by Cambridge University Press:  31 January 2011

Mario H. Gutiérrez-Villarreal  and
J. Gustavo Guzmán-Moreno
Mario H. Gutiérrez-Villarreal*
Affiliation:
Departamento de Procesos de Transformación de Plásticos, Centro de Investigación en Química Aplicada. Blvd. Enrique Reyna Hermosillo #140, Col. Saltillo 400, C.P. 25253, Saltillo, Coahuila, México.
J. Gustavo Guzmán-Moreno
Affiliation:
Departamento de Procesos de Transformación de Plásticos, Centro de Investigación en Química Aplicada. Blvd. Enrique Reyna Hermosillo #140, Col. Saltillo 400, C.P. 25253, Saltillo, Coahuila, México.
*
*[email protected].
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Abstract

A versatile and non destructive technique for a chemical modification by grafting N-vinylcaprolactam (VCL) monomer on the polylactic (PLA) film surface is described. The film substrate is treated with a VCL solution, hexane and benzophenone (BP), the latest promotes the photo initiation. Grafting percentage is derived by a gravimetric method and the success in grafting is evaluated by contact angle technique, UV and ATR-FTIR analysis. The influence of the photoinitiator concentration is evaluated by the polymerization rate (Cp), grafting percentage (Cg) and grafting efficiency (Eg). The modified surface shows higher level of humectation or hydrophilicity, confirming successful surface functionalization of the polylactic acid film.

Keywords

Polylactic acidvinylcaprolactamsurface modificationphotografting
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1244: Symposium 9 – Biomaterials , 2009 , 6
Copyright
Copyright © Materials Research Society 2009

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References

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