Morphological investigation of styrene and acrylamide polymer microspheres prepared by dispersion copolymerization |
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Authors: | Z Tao W Yang H Zhou C Wang S Fu |
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Institution: | (1) Department of Macromolecular Science and Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433, China, CN |
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Abstract: | The morphology of the styrene and acrylamide copolymer microspheres prepared by dispersion copolymerization in an ethanol/water
medium was investigated. The effects of the styrene/acrylamide ratio, ethanol/water ratio and stabilizer concentration on
the particle size and size distribution were studied. It was found that the initial solubility parameter of the system was
the key factor in the process. The comonomer acrylamide also played an important role in the particle size and size distribution
in the presence of cross-linking agent (divinylbenzene).
Received: 29 October 1999 Accepted in revised form: 29 November 1999 |
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Keywords: | Dispersion copolymerization Micron-sized monodisperse polymer particles Styrene Acrylamide |
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