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    ARTICLE

    Preparation of Corn Cellulose Films with Controllable Mechanical Property by Using Switchable CO2 /DBU/ DMSO System

    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 More >

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