| 淀粉-偶氮苯衍生物接枝共聚物的反相乳液合成及表征 |
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| 引用本文： | 梁卫东,崔锦峰,陈泳,苟国俊,尹建军.淀粉-偶氮苯衍生物接枝共聚物的反相乳液合成及表征[J].安徽农业科学,2007,35(30):9459-9461. |
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| 作者姓名： | 梁卫东 崔锦峰 陈泳 苟国俊 尹建军 |
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| 作者单位： | 兰州理工大学石油化工学院,兰州甘肃,730050;兰州理工大学石油化工学院,兰州甘肃,730050;兰州理工大学石油化工学院,兰州甘肃,730050;兰州理工大学石油化工学院,兰州甘肃,730050;兰州理工大学石油化工学院,兰州甘肃,730050 |
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| 基金项目： | 甘肃省自然科学基金B(ZS022-A25-008) |
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| 摘 要： | 以Span-80为乳化剂,K2S2O8的碱性溶液引发淀粉与偶氮苯衍生物接枝共聚,考察了反应温度、时间、pH值及乳化剂用量对接枝率和接枝效率的影响。结果表明:在反相乳液中应用价廉无毒的K2S2O8的碱性溶液引发接枝共聚反应,可以达到较高的接枝率和接枝效率。当淀粉用量7.00%,单体]=0.391 mol/L,K2S2O8]=8.650 mmol/L,KOH]=0.178 mol/L,乳化剂用量8.02%,反应时间120 min以及反应温度50℃时接枝率和接枝效率分别达最大值69.88%和94.60%。并应用X-ray衍射、热重分析TGA和差热分析DTA等测试手段对接枝共聚物进行了表征,确证了接枝的发生。
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| 关 键 词： | 淀粉 偶氮苯衍生物 接枝共聚 反相乳液 |
| 文章编号： | 0517-6611（2007）30-09459-03 |
| 修稿时间： | 2007-08-15 |
Synthesis and Structural Characterization of Starch-Azo Derivatives Grafting Copolymers in Inverse Emulsion |
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| LIANG Wei-dong et al.Synthesis and Structural Characterization of Starch-Azo Derivatives Grafting Copolymers in Inverse Emulsion[J].Journal of Anhui Agricultural Sciences,2007,35(30):9459-9461. |
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| Authors: | LIANG Wei-dong |
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| Institution: | School of Petrochemical Engineering;Lanzhou University of Technology;Lanzhou;Gansu 730050 |
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| Abstract: | 5 water-insoluble graft copolymers were prepared by potato starch and Azo-derivatives in inverse emulsion using Span-80 as emulsifier and K2S2O8 as initiator under basic condition.The effects of the technology parameters such as amount of base,reaction temperature,reaction time and emulsifier on the G% and GE% had been thoroughly investigated and the optimum yield 69.88% of G% was obtained when the concentration of monomer,K2S2O8,KOH and the percentage weight of AGU and emulsifier were used at 0.391,8.650×10-3,0.178 mo1/L,7.00%,8.02% respectively.The optimum reaction period and temperature were 120 min and 50 ℃ respectively.The evidence and structural characterization of the graft copolymers had been researched by means of X-ray diffraction analysis,thermogravimetry analysis(TGA) and differential thermal analysis(DTA). |
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| Keywords: | Starch Azo Derivatives Graft Copolymers Inverse emulsion |
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