Single-Step Covalent Functionalization of Polylactide Surfaces
2005 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 127, no 24, 8865-8871 p.Article in journal (Refereed) Published
A single-step, nondestructive, and versatile technique for the grafting and chemical surface modification of biodegradable polymers such as polylacticle is described. The substrates are subjected to the vapor phase of any of three investigated vinyl monomers: acrylamide, maleic anhydride, and N-vinylpyrrolidone, and grafting is induced by photoinitiation of benzophenone under solvent free conditions. The modified surfaces exhibit higher wettability, and the grafting is verified by X-ray photoelectron spectroscopy, attenuated total reflection Fourier-transform IR, contact-angle measurements, and scanning electron microscopy. The graft-chain pendant groups remain functional and can subsequently be modified so that a tailor-made surface with desired properties may be achieved.
Place, publisher, year, edition, pages
2005. Vol. 127, no 24, 8865-8871 p.
Biodegradation; Chemical modification; Contact angle; Fourier transform infrared spectroscopy; Grafting (chemical); Monomers; Scanning electron microscopy; Substrates; Surface treatment; X ray photoelectron spectroscopy; Biodegradable polymers; Polylactide; Vapor phase; Vinyl monomers; Acrylamide; Benzophenones; Gases; Maleic Anhydrides; Photochemistry; Polyesters; Pyrrolidinones; Spectroscopy, Fourier Transform Infrared; Surface Properties; Ultraviolet Rays
IdentifiersURN: urn:nbn:se:kth:diva-8971DOI: 10.1021/ja052073uISI: 000229981200047PubMedID: 15954795ScopusID: 2-s2.0-20944443598OAI: oai:DiVA.org:kth-8971DiVA: diva2:14486
QC 201008042005-12-282005-12-282010-08-04Bibliographically approved