@Article{JPM.2020.37.1-2.2,
AUTHOR = {BAOHAI PAN, JUNCHENG HUANG, LAI CHEN, FEI LIU, CHEN JING, HAINING NA, JIN ZHU},
TITLE = {Preparation of Corn Cellulose Films with Controllable Mechanical Property by Using Switchable CO<sub>2</sub> /DBU/ DMSO System},
JOURNAL = {Journal of Polymer Materials},
VOLUME = {37},
YEAR = {2020},
NUMBER = {1-2},
PAGES = {17--27},
URL = {http://www.techscience.com/jpm/v37n1-2/56056},
ISSN = {0976-3449},
ABSTRACT = {A switchable CO<sub>2</sub>
/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 CO<sub>2</sub>
/DBU/DMSO system, a rather simple process concerning reacted dissolution
and heated precipitation controlled by addition and releasing of CO<sub>2</sub>
 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 properties.When DBU/
anhydroglucose unit ratio is equal to 2.5:1, corn cellulose film shows the optimal mechanical
properties. The tensile strength and tensile modulus respectively reach 71.3MPa and 4.6±0.2GPa.
This research provides a feasible technical methodology to prepare corn cellulose film for
potential application as a sustainable material in the future.},
DOI = {10.32381/JPM.2020.37.1-2.2}
}