羧甲基纤维素钠的合成机理
纤维素碱化为碱纤维素:
Cell-(OH)3+xNaOH = Cell-(OH)3-x(O-Na+)x+xH2O
氯乙酸转化为氯乙酸钠:
ClCH2COOH +NaOH = ClCH2COONa+H2O
碱纤维素和氯乙酸钠转化为:
Cell-(OH)3-x(O-Na+)x +nClCH2COONa = Cell-(OH)3-x (ONa) x-n(OCH2COO-Na+) n + nNaCl
经过中和、洗涤:
Cell-(OH)3-x (ONa) x-n(OCH2COO-Na+) n+( x-n)CH3COOH = Cell-(OH)3-n(OCH2COO-Na+) n+( x-n)CH3COONa