Volume : V, Issue : II, February - 2015

Optimisation fabrication of butyl methacrylate monoliths

Eman Alzahrani

Abstract :

In this study, a butyl methacrylate–co–ethylene dimethacrylate (BuMA–co–EDMA) monolith was synthesised using UV–initiated polymerization. The effect of the energy of the UV light (254 and 365 nm), and the time of exposure to the UV light (8–22 min) on faication of the organic polymer monolith were investigated. The results of this investigation showed that the most suitable wavelength for the photoinitiated polymerisation reaction in this study was 365 nm. In addition, the finding of this study suggests that the optimum time of exposure to the UV light in order to prepare a porous rigid monolith was 20 min. Control of the porous properties of the organic polymer monolith was optimised by adjusting the composition of the porogenic solvents. In this study, eight different binary porogenic solvent systems containing 50 % of main solvent (MeOH) and 50 % of co–porogen (EtOH, ACN, chloroform, hexane, tetrahydrofuran, 1–propanol, ethyl acetate, and cyclohexanol) were studied. The characterisation of the bed structures of the faicated monoliths was carried out by SEM analysis, BET model, and measuring the porosity and permeability of the monoliths. The results of this investigation show that the optimal binary porogenic solvent system to prepare the poly (BuMA–co–EDMA) monolith was MeOH/EtOH, which offers high porosity and permeability. In addition, this study found that replacing EtOH with 1–propanol enables the faication of the organic polymer monolith with a higher surface area (56.89 m2 g–1).

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Eman Alzahrani Optimisation fabrication of butyl methacrylate monoliths Indian Journal of Applied Research, Vol.5, Issue : 2 February 2015

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