| 聚天冬氨酸的合成方法及其阻垢性能之间的关系研究 |
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| 引用本文： | 朱志良,梁晓明,郜俊影,张荣华,李风亭.聚天冬氨酸的合成方法及其阻垢性能之间的关系研究[J].工业水处理,2004,24(4):30-32. |
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| 作者姓名： | 朱志良 梁晓明 郜俊影 张荣华 李风亭 |
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| 作者单位： | 同济大学化学系,上海,200092;同济大学环境科学与工程学院,上海,200092 |
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| 基金项目： | 教育部骨干教师资助计划资助编号:GG-430-10247-1218，科技部-小城镇科技发展重大项目编号:2003BA808A17 |
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| 摘 要： | 利用L-天冬氨酸热缩聚合,磷酸作催化剂条件下的L-天冬氨酸热聚合以及马来酸、氨水为原料热聚合等三种方法,合成了可生物降解的绿色高分子聚天冬氨酸(PASP),所得产物相对分子质量在1800~5000之间,用静态阻垢法研究比较了以上三类产物的阻垢性能,结果表明:PASP具有优良的阻CaCO3、CaSO4和BaSO4垢的性能,其中相对分子质量<2000的聚天冬氨酸对碳酸钙和硫酸钡的阻垢性能较差,但对硫酸钙的阻垢效果相对较好。
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| 关 键 词： | 聚天冬氨酸 合成 阻垢性能 |
| 文章编号： | 1005-829X(2004)04-0030-03 |
| 修稿时间： | 2003年5月28日 |
Study of the synthesis and scale inhibition of polyaspartic acid |
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| Zhu Zhiliang,Liang Xiaoming,Gao Junying,Zhang Ronghua,Li Fengting.Study of the synthesis and scale inhibition of polyaspartic acid[J].Industrial Water Treatment,2004,24(4):30-32. |
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| Authors: | Zhu Zhiliang Liang Xiaoming Gao Junying Zhang Ronghua Li Fengting |
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| Affiliation: | Zhu Zhiliang1,Liang Xiaoming1,Gao Junying1,Zhang Ronghua1,Li Fengting2 |
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| Abstract: | Polyaspartic acid is synthesized by three methods, the thermal pol ycondensation of L-aspartic acid, acid-catalyzed polycondensation of L-aspar tic acid and polycondensation of maleic acid with ammonia. The molecular weight of PASP synthesized by these methods is 2 500, 5 000 and 1 800 respectively. The scale inhibition properties of the above PASP products are studied. The results show that all the three kinds of PASP have a good scale inhibition effect on Ca CO3, CaSO4 and BaSO4. It also indicates that the product with lower molecular we ight of 1 800 has a comparably inferior scale inhibition on CaCO3 and BaSO4 than CaSO4. (3. |
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| Keywords: | polyaspartic acid synthesis scale inhibition |
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