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Abstract
Novel thermo-responsive cellulose papers were prepared via grafting poly(di(ethylene glycol) methyl ether methacrylate) (PDEGMA) by activators regenerated electron transfer (ARGET)-atom transfer radical polymerization (ATRP). Attenuated total refraction Fourier-transform infrared spectroscopy (ATR-FTIR) and scanning electron microscopy (SEM) measurements of the modified paper showed that PDEGMA brushes were successfully grafted on the paper surface. The thermal stability of the papers before and after grafting was evaluated with thermogravimetric analysis (TGA). The initiator-immobilized paper presented a reduced thermal stability with respect to the untreated paper. A two-step thermal degradation process and further reduced thermal stability was observed for the PDEGMA-grafted paper. Water contact angle measurements revealed that the grafted paper presented a thermo-responsive character, with changes in wettability from relatively hydrophilic at room temperature to highly hydrophobic at high temperature.
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