Synthesis And Characterization Of Succinic Acid Modified Cellulose

Puah, Kai Shin (2011) Synthesis And Characterization Of Succinic Acid Modified Cellulose. [Final Year Project Report] (Unpublished)

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Abstract

Cellulose is an organic component in plant cell which is insoluble in water. In this study, synthesis and modification of cellulose were carried out by dissolved it in aqueous solution. So far, some of the technology has been developed for dissolution of cellulose. There are many of the aqueous solvent can be used to dissolve cellulose before it modified by other functional group. Firstly, facial cottons were undergoes pretreatment process by ultrasonication and maceration to enhance their dissolution in NaOHIthiourealurea (NTU) solvent system. The cellulose solutions prepared were then gone through modification process. Then, succinic acid was used to modify the cellulose in aqueous solution through esterification reaction by adding sodium hydroxide, NaOH as catalyst. Modification of succinic acid is important to produce water soluble succinic acid modified cellulose and effects of modification process in various synthesis conditions were investigated. Subsequently, nanoprecipitation technique was applied to precipitate succinic acid modified cellulose. Physical and chemical properties of succinic acid modified cellulose were identified and characterized. The functional group of native cellulose and succinic acid modified cellulose were determined by Fourier Transformed Infra-Red Spectroscopy (FTIR). Finally, Scanning Electron Microscopy (SEM) was used to examine the morphology of the native cellulose and succinic acid modified cellulose.

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