Abstract
Poly(N-isopropylacrylamide) (PIPAAm) exhibits a reversible, temperature-dependent soluble/insoluble transition at its critical temperature in aqueous media. When PIPAAm molecules are covalently attached to a solid surface, the graft configuration greatly affects the thermoresponsive wettability changes of PIPAAm-modified surfaces. Three types of temperature-responsive surfaces were prepared using PIPAAm grafts of different molecular architectures: PIPAAm terminally grafted surfaces, PIPAAm looped chain grafted surfaces using a copolymer of IPAAm and N-acryloxysuccinimide, and PIPAAm terminally grafted onto immobilized PIPAAm loops. These surfaces were prepared by changing the graft architecture as well as the density of PIPAAm chains to investigate temperature-responsive wettability changes. All surfaces showed temperature-responsive hydrophilic/hydrophobic surface property alterations demonstrated by observed large and discontinuous wettability changes. On both surfaces bearing terminally grafted PIPAAm...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
