Preparation and FTIR Properties of Amino Compounds Modified Glutaraldehyde Crosslinked Chitosan Resin Activated with Cyanuric Chloride
FENG Chang-gen1, BAI Lin-shan1，REN Qi-sheng2
1. Center of Research and Development for New Pharmaceuticals, Beijing Institute of Technology, Beijing 100081, China 2. Beijing Jiangzhong Institute of Pharmaceuticals, Beijing 100050, China
Abstract：The preparation and IR properties of 1-butylamine, dimethylamine, trimethylamine, triethylamine, benzylamine, 4-methylaniline and 4-aminobenzenesulfonic acid modified glutaraldehyde crosslinked chitosan activated with cyanuric chloride were studied. The absorption of ν(O—H) and ν(N—H) at 3 430-3 440 cm-1, ν(C—O—C) at 1 155 cm-1, ν(C—OH) at 1 030 cm-1 and ν(C—O) of β-D-glucose at 899 cm-1 were not shifted obviously. The absorption of δ(C—H) at 1 400-1 384 cm-1 and ν(C—OH) at 1 095 cm-1 varied markedly. The ν(CN) absorption of crosslinked chitosan was at 1 640-1 650 cm-1. The skeleton vibration absorption of 1,3,5-triazine ring was at 803-812 cm-1 and 1 584-1 590 cm-1. With different deacetylation or substitution, the amide Ⅰ, Ⅱ, Ⅲ absorption at 1 650, 1 600 and 1 310 cm-1 varied obviously. When modified with 1-butylamine, dimethylamine, benzylamine, 4-methylaniline and 4-aminobenzenesulfonic acid, strong absorption of δ(NH+3) appeared at 1 517-1 530 cm-1, which was weakened or disappeared when modified with trimethylamine or triethylamine, but a series of new absorption of ν(C—N) appeared at 1 400-1 500 cm-1.
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