The Heterogenation Of Saccharin, Melamine And Sulfonic Acid Onto Rice Husk Ash Silica And Their Catalytic Activity In Esterification Reaction

Hello, Kasim Mohammed (2010) The Heterogenation Of Saccharin, Melamine And Sulfonic Acid Onto Rice Husk Ash Silica And Their Catalytic Activity In Esterification Reaction. PhD thesis, Universiti Sains Malaysia.

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Abstract

Sodium silicate from rice husk ash (RHA) was functionalized with 3– (chloropropyl)triethoxysilane (CPTES), 3–(mercaptopropyl)trimethoxysilane and 3–(aminopropyl)triethoxysilane to give RHACCl, RHAPrSH and RHAPrNH2 via a simple one–pot synthesis. The 29Si MAS NMR of RHACCl showed the presence of T2, T3, Q3 and Q4 silicon centres, while the T1, T2, T3, Q2, Q3 and Q4 silicon centres were present in both RHAPrSH and RHAPrNH2. The 13C MAS NMR showed that RHACCl had three chemical shifts at 10.37, 26.70 and 47.69 ppm, which was attributed to the three carbon atoms of the CPTES moiety

Item Type:	Thesis (PhD)
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry
Divisions:	Pusat Pengajian Sains Kimia (School of Chemistry) > Thesis
Depositing User:	ASM Ab Shukor Mustapa
Date Deposited:	14 Sep 2018 07:26
Last Modified:	12 Apr 2019 05:26
URI:	http://eprints.usm.my/id/eprint/41882

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