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https://scholarbank.nus.edu.sg/handle/10635/76214
Title: | Formation of microporous polymeric materials by microemulsion polymerization of methyl methacrylate and 2-hydroxyethyl methacrylate | Authors: | Chieng, T.H. Gan, L.M. Chew, C.H. Ng, S.C. Pey, K.L. |
Issue Date: | 6-Jun-1996 | Citation: | Chieng, T.H.,Gan, L.M.,Chew, C.H.,Ng, S.C.,Pey, K.L. (1996-06-06). Formation of microporous polymeric materials by microemulsion polymerization of methyl methacrylate and 2-hydroxyethyl methacrylate. Journal of Applied Polymer Science 60 (10) : 1561-1568. ScholarBank@NUS Repository. | Abstract: | The investigated microemulsion system consisted of methyl methacrylate, 2-hydroxyethyl methacrylate and water using sodium dodecyl sulphate as surfactant. Ethylene glycol dimethacrylate acting as a cross-linker was also incorporated to enhance the mechanical strengths of the microporous polymeric materials. The polymerization was carried out at room temperature using a reactive redox initiator comprising ammonium persulphate and N,N,N′,N′-tetramethylethylene diamine. The conductivities of the microemulsion samples were monitored during the course of polymerization. The conductivities for a bicontinuous microemulsion before and after polymerization were found to be very similar. In addition, the transformation of microstructures was also examined using a transmission as well as a field emission scanning electron microscope. It is evidenced from the micrographs that microporous polymeric materials prepared from bicontinuous microemulsion polymerization are attributed to numerous coagulations of spherical particles. A possible mechanism for the microstructural transformation is discussed based on the information of conductivity measurements and electron micrographs. © 1996 John Wiley & Sons, Inc. | Source Title: | Journal of Applied Polymer Science | URI: | http://scholarbank.nus.edu.sg/handle/10635/76214 | ISSN: | 00218995 |
Appears in Collections: | Staff Publications |
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