The Study of Intermolecular Inclusion in Cellulose Physical Gels

In this study, cellulose possessing -cyclodextrin (-CD) is employed as a host molecule, and cellulose possessing ferrocene (Fc) is used as a guest polymer. The properties due to the host-guest interactions are presented. The results show that -CD-cellulose and Fc-cellulose can form inclusion complexes wherein hydrophobic interaction caused by -CD-cellulose and Fc-cellulose significantly affect the performance of the cellulose gel. A physical gel based on cellulose that can autonomously heal between cut surfaces after 24 h was formed under mild conditions. Moreover, ferrocene redox status affects the hydrophobic interaction, such that the hydrophobic interaction can strengthen the gel strength and affect the self-healing property.