[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.
　FAN Zhonglei,WANG Linghui,SHEN Jinge.Synthesis Study of Ethylenediamine Grafted on Silica Gel[J].Journal of Zhengzhou University (Engineering Science),2010,31(02):86.
点击复制

乙二胺接枝硅胶的合成研究()
分享到：

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

卷:
31
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 Study of Ethylenediamine Grafted on 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 Jinge
Shool of Chemical and Energy Engineering，Zhengzhou University，Zhengzhou 450001，China
关键词:
乙二胺;  硅胶;  接枝;  动力学
Keywords:
thylenediamine; silica gel; graft; kinetics
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:
The ethylenediamine—grafted silica gel(EDA／Si02)was prepared by CPTCS as surface anchorand ethylenediamine as surface modification agent．The effects of temperature，time and ethylenediamine con—centration on the substitution reaction of ethylenediamine with CPTCS—SiO，were investigated in detail．Andit was obtained that the optimal conditions were reaction temperature 333 K，reaction time 16h，and n(ethyl．enediamine)：n(chlorine on the SUrface of CPTCS—Si02)more than 9.The substitution reaction kinetics ofethylenediamine with CPTCS—Si02 was also investigated． It was obtained that the parameters of the apparentkinetic model were reaction order 4.37．activation energy 55.44KJ／mol and frequency factor 5.06×10 7h一1by the kinetics data fitted with the differentiation and minimum variance linear regression．Infrared spectrosco—PY and its performance show that ethylenediamine was grafied on silica gel by substitution reaction．

相似文献/References:

[1]邹卫华,李苛,高帅鹏,等.乙二胺改性锯末对刚果红的吸附研究[J].郑州大学学报(工学版),2013,34(02):28.[doi:10.3969/j.issn.1671-6833.2013.02.008]
　ZoU Wei-hua,LI Ke,GAO Shuai-peng,et al.Study on Congo Red Adsorption with Ethylenediamine Modified Sawdust[J].Journal of Zhengzhou University (Engineering Science),2013,34(02):28.[doi:10.3969/j.issn.1671-6833.2013.02.008]

更新日期/Last Update: 1900-01-01