Direct Interfacial Modification of Nanocellulose Films for Thermoresponsive Membrane Templates Minna Hakalahti Andreas Mautner Leena-Sisko Johansson Tuomas Hänninen Harri Setälä Eero Kontturi Alexander Bismarck Tekla Tammelin 10.1021/acsami.5b12300.s001 https://acs.figshare.com/articles/journal_contribution/Direct_Interfacial_Modification_of_Nanocellulose_Films_for_Thermoresponsive_Membrane_Templates/2072704 This letter proposes a strategy to construct tunable films combining the physical characteristics of cellulose nanofibrils and smart polymers for membrane applications. A functional membrane template was obtained by first fabricating a water stable film from cellulose nanofibrils and subsequently surface grafting it with a thermoresponsive polymer, poly­(<i>N</i>-isopropylacrylamide). The behavior of the membrane template was dependent on temperature. The increment in slope of relative water permeance around the lower critical solution temperature of poly­(<i>N</i>-isopropylacrylamide) increased from 18 to 100% upon polymer attachment. Although the membrane template essentially consisted of wood-based materials, the benefits of smart synthetic polymers were achieved. 2016-02-04 19:24:49 polymer film Thermoresponsive Membrane TemplatesThis letter cellulose nanofibrils poly Direct Interfacial Modification membrane template