Preparation,Characterization and Properties of Cellulose Acetate-Grafted-Poly(glycidyl methacrylate) Copolymers |
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| Authors: | J Wang P Lei Z H Liu P He K M Wang C B Liu |
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| Institution: | 1. Yunnan Key Laboratory of Tobacco Chemistry, Yunnan Academy of Tobacco Science, Kunming 650106, Yunnan, China;2. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China |
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| Abstract: | The cellulose acetate-grafted-poly(glycidyl methacrylate) copolymers were synthesized successfully by free radical polymerization. The resulting copolymer was characterized by proton nuclear magnetic resonance (1H-NMR), solid-state 13C-NMR, Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC). The crystallization behavior, thermal properties, specific particle surface area, moisture sorption behavior of the modified cellulose acetate were investigated by wide angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET) method and Dynamic Vapor Sorption (DVS) instrument. It was found that the poly(glycidyl methacrylate) (PGMA) grafting was effective in improving the water adsorption of cellulose acetate (CA) changing the specific surface area, and reducing the Tg of copolymers. |
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| Keywords: | Cellulose acetate poly(glycidyl methacrylate) thermal properties water adsorption |
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