Intelligent Dual-Responsive Cellulose Surfaces via Surface-Initiated ATRP
2008 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 9, no 8, 2139-2145 p.Article in journal (Refereed) Published
Novel thermo-responsive cellulose (filter paper) surfaces of N-isopropylacrylamide (NIPAAm) and pH-responsive cellulose surfaces of 4-vinylpyridine (4VP) have been achieved via surface-initiated ATRP. Dual-responsive (pH and temperature) cellulose surfaces were also obtained through the synthesis of block-copolymer brushes of PNIPAAm and P4VP. With changes in pH and temperature, these "intelligent" surfaces showed a reversible response to both individual triggers, as indicated by the changes in wettability from highly hydrophilic to highly hydrophobic observed by water contact angle measurements. Adjusting the composition of the grafted block-copolymer brushes allowed for further tuning of the wettability of these "intelligent" cellulose surfaces.
Place, publisher, year, edition, pages
2008. Vol. 9, no 8, 2139-2145 p.
Acrylic monomers; Amides; Angle measurement; Atom transfer radical polymerization; Brushes; Cellulose; Contact angle; Copolymerization; Nanostructured materials; Plastic products; Polymers; 4-vinylpyridine; Block co polymers; Cellulose surfaces; Filter papers; N-Isopropylacrylamide; pH-responsive; PNIPAAm; Surface-initiated ATRP; Water contact angle; Acrylamides; Acrylic Resins; Biocompatible Materials; Cellulose; Copper; Filtration; Hydrogen-Ion Concentration; Hydrolysis; Polymers; Pyridines; Spectrophotometry, Infrared; Spectroscopy, Fourier Transform Infrared; Surface Properties; Temperature; Wettability
IdentifiersURN: urn:nbn:se:kth:diva-8371DOI: 10.1021/bm800193nISI: 000258400200008PubMedID: 18636775ScopusID: 2-s2.0-52649118631OAI: oai:DiVA.org:kth-8371DiVA: diva2:13675
QC 20100805. Uppdaterad från In press till Published 20100805.2008-05-082008-05-082012-03-20Bibliographically approved