A novel acrylic acid crosslinked chitosan membrane was prepared through a homogeneous solution reaction and its crosslinking structure was investigated through swelling ratio test, tensile measurement,IR spectra and pervaporation separation of ethanol/water mixtures using four kinds of sample membranes such as uncrosslinked chitosan membrane(sample A), chitosan membrane crosslinked by acrylic acid with and without inhibitor and methyl acrylic acid(sample B,C and D,respectively).The crosslinking is proved to...