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Preparations of Methylphenyldiethoxsilane by One Step Grignard Method and Methylphenylcyclosiloxane by Hydrolysis and Pyrolysis Methods

文献类型: 外文期刊

作者: Li, Min 1 ; Chen, Liu-Meng 2 ; Jiang, Bo-Quan 1 ;

作者机构: 1.Nanchang Univ Coll Sci & Technol, Dept Biol Chem, Inst Sci, Nanchang 330029, Jiangxi, Peoples R China

2.Jiangxi Acad Agr Sci, Inst Appl Agr Microorganism, Nanchang 330200, Jiangxi, Peoples R China

关键词: Methyl Phenol Cyclic Silicone;Methyl Phenyl Diethoxy Silane;Grignard Method;Hydrolysis;Pyrolysis

期刊名称:PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE AND APPLICATIONS (ICMSA 2015)

ISSN: 2352-541X

年卷期: 2015 年 3 卷

页码:

收录情况: SCI

摘要: Methyl phenol cyclic silicone (MPCS) and methyl phenyl diethoxy silane (MPDS) are important materials for production of addition-cured liquid silicone rubber. The one step Grignard method was used to synthesize MPDS and the orthogonal test method was applied to optimize the process. The maximum MPDS yield of 60.2% was obtained under molar ratio of magnesium/methyl triethoxy silane/chlorobenzene of 1/1.5/1.25, reaction time of 2.5 h and reaction temperature of 95 degrees C. The hydrolysis and pyrolysis methods were used to synthesize MPCS and the single factor method was applied to optimize the process. The maximum MPCS yield of 72% was achieved with DBS/MPDS mass ratio of 4% and fractional addition of MPDS at 95 degrees C. The products were characterized by infrared spectrometer and the results showed that the peaks appeared on the IR spectra were basically in agreement with those of MPDS and MPCS, respectively.

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