Synthesis Study of Ethylenediamine Grafted on Silica Gel
[1]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-.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
31卷
Number of periods:
2010 No.02
Page number:
86-
Column:
Public date:
2010-02-02
- Title:
- Synthesis Study of Ethylenediamine Grafted on Silica Gel
- Keywords:
- thylenediamine; silica gel; graft; kinetics
- CLC:
- -
- DOI:
- -
- 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．
- References:
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Last Update:
1900-01-01