壳聚糖基高吸水性树脂的微波辐射制备及其溶胀动力学
TL13; 以壳聚糖(CS)、丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,采用微波辐射法,通过接枝聚合反应合成了CS-g-P(AM-co-AMPS)高吸水性树脂.通过傅里叶变换红外光谱、X射线衍射和扫描电镜分析了树脂的结构,推测了反应机理,并利用热重技术研究了树脂在氮气气氛中的热分解动力学.此外,还探讨了树脂在盐溶液中的吸液倍率并研究了树脂的溶胀动力学.结果显示:CS与AM、AMPS之间发生了接枝聚合反应,树脂形成较明显的网状结构,CS质量分数为10％时,树脂的吸水倍率为1332 g/g;树脂的吸液倍率随着无机盐溶液浓度和金属价态的增加而减少;根据Kissinger法求...
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| Published in | 辐射研究与辐射工艺学报 Vol. 40; no. 2; pp. 8 - 17 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
安徽理工大学化学工程学院 淮南 232001
01.04.2022
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-3436 |
| DOI | 10.11889/j.1000-3436.2021-0202 |
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| Abstract | TL13; 以壳聚糖(CS)、丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,采用微波辐射法,通过接枝聚合反应合成了CS-g-P(AM-co-AMPS)高吸水性树脂.通过傅里叶变换红外光谱、X射线衍射和扫描电镜分析了树脂的结构,推测了反应机理,并利用热重技术研究了树脂在氮气气氛中的热分解动力学.此外,还探讨了树脂在盐溶液中的吸液倍率并研究了树脂的溶胀动力学.结果显示:CS与AM、AMPS之间发生了接枝聚合反应,树脂形成较明显的网状结构,CS质量分数为10％时,树脂的吸水倍率为1332 g/g;树脂的吸液倍率随着无机盐溶液浓度和金属价态的增加而减少;根据Kissinger法求得树脂的热分解活化能为223.65 kJ/mol,指前因子为3.6×1017 s?1,由Crane法求得其反应级数为2.14.树脂的溶胀过程满足准二级动力学模型,水溶液内扩散符合Non-Fickian扩散过程. |
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| AbstractList | TL13; 以壳聚糖(CS)、丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,采用微波辐射法,通过接枝聚合反应合成了CS-g-P(AM-co-AMPS)高吸水性树脂.通过傅里叶变换红外光谱、X射线衍射和扫描电镜分析了树脂的结构,推测了反应机理,并利用热重技术研究了树脂在氮气气氛中的热分解动力学.此外,还探讨了树脂在盐溶液中的吸液倍率并研究了树脂的溶胀动力学.结果显示:CS与AM、AMPS之间发生了接枝聚合反应,树脂形成较明显的网状结构,CS质量分数为10％时,树脂的吸水倍率为1332 g/g;树脂的吸液倍率随着无机盐溶液浓度和金属价态的增加而减少;根据Kissinger法求得树脂的热分解活化能为223.65 kJ/mol,指前因子为3.6×1017 s?1,由Crane法求得其反应级数为2.14.树脂的溶胀过程满足准二级动力学模型,水溶液内扩散符合Non-Fickian扩散过程. |
| Author | 甘颖 房彦一 刘文武 戴长奇 |
| AuthorAffiliation | 安徽理工大学化学工程学院 淮南 232001 |
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| Author_FL | FANG Yanyi GAN Ying DAI Changqi LIU Wenwu |
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| Keywords | 微波辐射 壳聚糖 高吸水性树脂 动力学 辐射接枝 |
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| Snippet | TL13; 以壳聚糖(CS)、丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,采用微波辐射法,通过接枝聚合反应合成了CS-g-P(AM-co-AMPS)高吸水性树脂.通过傅里叶变换红外光... |
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| Title | 壳聚糖基高吸水性树脂的微波辐射制备及其溶胀动力学 |
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