Homogeneous modification of cellulose in ionic liquid - Details

author：

Lin, Shize (Lin, Shize.) ^[1] | Xie, Yusheng (Xie, Yusheng.) ^[2] | Lin, Chunxiang (Lin, Chunxiang.) ^[3] (Scholars：林春香) | Qiao, Sha (Qiao, Sha.) ^[4]

Indexed by：

EI Scopus PKU CSCD

Abstract：

The　homogeneous　esterification　of　cellulose　was　conducted　without　any　catalysts　under　mild　conditions　in　an　ionic　liquid,　1-butyl-3-methylimidazolium　chloride　([Bmim]Cl),　using　chloroacetyl　chloride　as　esterifying　agent.　The　influence　of　reaction　temperature,　reaction　time　and　the　amount　of　esterifying　agent　on　degree　of　esterification　were　investigated.　The　modified　cellulose　was　characterized　by　IR　and　NMR,　and　the　solubility　of　the　product　in　solutions　was　also　investigated.　It　was　found　that　the　DS　of　the　modified　cellulose　could　be　1.36　under　the　conditions　as　follows:　the　molar　ratio　of　cellulose　anhydroglucose　unit　to　chloroacetyl　chloride　was　1:3,　the　reaction　time　was　2　h,　and　the　reaction　could　be　carried　out　at　room　temperature.　Moreover,　the　modified　cellulose　could　easily　solute　in　some　organic　solutions,　such　as　acetone,　dimethyl　sulfoxide　and　tetrahydrofuran.　©　All　Rights　Reserved.

Keyword：

Acetone Cellulose Chlorine compounds Dimethyl sulfoxide Esters Ionic liquids Molar ratio Solubility

Community：

[ 1 ] [Lin, Shize]College of Environment and Resources, Fuzhou University, Fuzhou 350108, Fujian, China
[ 2 ] [Xie, Yusheng]College of Environment and Resources, Fuzhou University, Fuzhou 350108, Fujian, China
[ 3 ] [Lin, Chunxiang]College of Environment and Resources, Fuzhou University, Fuzhou 350108, Fujian, China
[ 4 ] [Qiao, Sha]College of Environment and Resources, Fuzhou University, Fuzhou 350108, Fujian, China