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Cellulose (Cellulose) is a great potential and promising applications of renewable resources. In this thesis, sodium glucose molecule cotton fiber base ring C2 and C3 adjacent bit selective oxidation of secondary hydroxyl groups obtained dialdehyde cellulose (Dialdehyde cellulose, DAC). By chemical titration DAC, aldehyde content , and discusses three titration methods and reaction mechanism , titration methods to determine the best method for the alkali consumption . Furthermore, in order to dialdehyde cellulose (DAC) and glycine (Glycine, Gly) as raw materials nitrobenzaldehyde (p-nitrobenzaldehyde, p-NBD) is a bridge graft using Schiff base (Schiff base) reaction , design and synthesis of new derivatives of cellulose Jixi Fu bases - dialdehyde cellulose graft glycine Schiff base (DAC-g-Gly). Studied in detail (DAC-g-Gly) optimized synthesis conditions a yield of 86.1% , instead of up to 11.4%. X-ray diffraction (XRD), infrared spectroscopy (IR), solid state NMR spectroscopy (CP / MAS 13C NMR) and scanning electron microscope (Scanning electron microscope, SEM) was characterized intermediates (DAC) and the final product (DAC- g-Gly) structure of the synthesized compounds confirmed the expected product. Thermogravimetry (TG) and differential scanning calorimetry surface (DSC) analysis of the intermediate product (DAC) and the final product (DAC-g-Gly) Thermal performance results show that the cotton fiber by sodium periodate oxidation degradation of the whole structure , but cellulose grafted on aminobenzaldehyde glycine Schiff base (p-ABD-Gly-Schiff base) after , DAC thermal stability is enhanced. Meanwhile, cotton fibers, cotton fibers and oxidized cellulose oxidized glycine grafted a fungal biodegradation experiment using a scanning electron microscope (SEM) observation of the cotton fibers, cotton fibers and oxidized cellulose oxidized glycine after grafting different Trichoderma time after degradation apparent morphology , indicating that the product has good biodegradability ; using activated sludge method for DAC-g-Gly degradation test conducted , double indicator titration process activated sludge degradation DAC-g-Gly results show , synthetic product DAC-g-Gly in a neutral form and a natural active sludge in soil , after four weeks , the degradation rate of about 9.91% .
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