BAOHAI PAN1,2, JUNCHENG HUANG1, LAI CHEN2, FEI LIU1,*, CHEN JING, HAINING NA1,*, JIN ZHU1
Journal of Polymer Materials, Vol.37, No.1-2, pp. 17-27, 2020, DOI:10.32381/JPM.2020.37.1-2.2
Abstract A switchable CO2
/1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)/dimethyl sulfoxide (DMSO) solvent
system is applied to prepare corn cellulose film with controllable mechanical property. By use of
the switchable CO2
/DBU/DMSO system, a rather simple process concerning reacted dissolution
and heated precipitation controlled by addition and releasing of CO2
respectively, to prepare
corn cellulose film, is formed. Results exhibit the degree of dissolution of corn cellulose is
easily controlled just by adjusting the feeding amount of DBU in the switchable solvent system.
Accordingly, some undissolved part of corn cellulose with relative high crystallinity can be
appropriately retained to contribute to the improvement of mechanical… More >
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