[1]范忠雷,王玲慧,慎金鸽..乙二胺接枝硅胶的合成研究[J].郑州大学学报(工学版),2010,31(02):86.[doi:10.3969/j.issn.1671-6833.2010.02.021]
　FAN Zhonglei,Wang Linghui,Shen Jin Pigeon.Synthesis of ethylenediamine grafted silica gel[J].Journal of Zhengzhou University (Engineering Science),2010,31(02):86.[doi:10.3969/j.issn.1671-6833.2010.02.021]

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乙二胺接枝硅胶的合成研究()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

31卷

期数:

2010年02期

页码:

86

栏目:

出版日期:

2010-02-02

文章信息/Info

Title:

Synthesis of ethylenediamine grafted silica gel

作者:

范忠雷; 王玲慧; 慎金鸽.

郑州大学,化工与能源学院,河南,郑州,450001, 郑州大学,化工与能源学院,河南,郑州,450001, 郑州大学,化工与能源学院,河南,郑州,450001

Author(s):

FAN Zhonglei; Wang Linghui; Shen Jin Pigeon

关键词:

乙二胺;  硅胶;  接枝;  动力学

Keywords:

ethylenediamine;  Silicone;  grafting;  Dynamics

DOI:

10.3969/j.issn.1671-6833.2010.02.021

文献标志码:

A

摘要:

以氯丙基三氯硅烷为架桥剂,乙二胺为硅胶表面修饰剂,合成了乙二胺接枝硅胶材料.考察了反应温度、反应时间和乙二胺含量等因素对取代反应的影响,得到优化的反应条件为:反应温度333 K,反应时间16 h,乙二胺与CPTCS-SiO_2表面氯含量的摩尔比大于9.测定了乙二胺取代反应的动力学数据,采用微分法和最小方差线性回归法处理实验数据,获得了表现动力学模型的反应级数为4.37,活化能为55.44 kJ/mol,频率因子为5.06×10~7h~(-1),并用红外谱法和性能测定验证了乙二胺在硅胶表面进行的接枝反应.

Abstract:

Ethylenediamine-grafted silica gel material was synthesized by using chloropropyltrichlorosilane as bridging agent and ethylenediamine as silica gel surface modifier. The effects of reaction temperature, reaction time and ethylenediamine content on the substitution reaction were investigated, and the optimized reaction conditions were: reaction temperature 333 K, reaction time 16 h, molar ratio of ethylenediamine to chlorine content on the surface of CPTCS-SiO_2 was greater than 9. The frequency factor was 4.37×55~44h~(-5), and the grafting reaction of ethylenediamine on the surface of silica gel was verified by infrared spectroscopy and performance determination.

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