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作 者:高自宏[1] 范星河[1] 陈小芳[1] 周其凤[1]
机构地区:[1]北京大学化学与分子工程学院
出 处:《高等学校化学学报》2005年第8期1579-1581,共3页Chemical Journal of Chinese Universities
基 金:国家重点基础研究"九七三"计划项目(批准号:2001AA335050);国家自然科学基金(批准号:20474004)资助.
摘 要:The introduction of silane into the polymer backbone improves the solubility of the polymer without having a great influence on the thermal stability of the polymer. Therefore, the changes on the main-chain of PAEK were made to gain novel materials containing silane and all the polymers were prepared by low temperature polycondensation method. The glass transition temperatures were evaluated by differential scanning calorimetry(DSC) and the thermal properties were tested by thermal gravimetric analysis(TGA) which showed no mass loss below 350 ℃ in both air and nitrogen atmospheres. All the polymers were completely soluble in organic solvents such as N,N-dimethylformamide, N,N-dimethylacetamide, N-methyl-2-pyrrolidone, dimethyl sulphoxide(DMSO), and concentrated sulfonated acid(H-2SO-4). All these PAEK materials containing silane, which show excellent properties, were expected to be applied in composition or function material system.The introduction of silane into the polymer backbone improves the solubility of the polymer without having a great influence on the thermal stability of the polymer. Therefore, the changes on the main-chain of PAEK were made to gain novel materials containing silane and all the polymers were prepared by low temperature polycondensation method. The glass transition temperatures were evaluated by differential scanning calorimetry(DSC) and the thermal properties were tested by thermal gravimetric analysis(TGA) which showed no mass loss below 350℃ in both air and nitrogen atmospheres. All the polymers were completely soluble in organic solvents such as N, N-dimethylformamide, N, N-dimethylacetamide, N-methyl-2-pyrrolidone, dimethyl sulphoxide (DMSO), and concentrated sulfonated acid (H2SO4). All these PAEK materials containing silane, which show excellent properties, were expected to be applied in composition or function material system.
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