Synthesis of crosslinked resin based on methacrylamide, styrene and divinylbenzene obtained from polymerization in aqueous suspension
| Autor: | Luiz Claudio de Santa Maria, Pedro Ivo C. Guimarães, Ana Jaqueline Barreto de Oliveira, Marcia C.V. Amorim, Marcos A. S. Costa, Alcino Palermo de Aguiar, Mônica Regina Marques Palermo de Aguiar, Raphael S.M Almeida |
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| Rok vydání: | 2003 |
| Předmět: |
Materials science
Polymers and Plastics Organic Chemistry Aqueous two-phase system General Physics and Astronomy Divinylbenzene Styrene chemistry.chemical_compound chemistry Polymerization Transfer agent Polymer chemistry Materials Chemistry Copolymer Methacrylamide Suspension polymerization Nuclear chemistry |
| Zdroj: | European Polymer Journal. 39:291-296 |
| ISSN: | 0014-3057 |
| DOI: | 10.1016/s0014-3057(02)00196-9 |
| Popis: | A series of porous copolymer beads based on methacrylamide (MA), styrene and divinylbenzene (DVB) was prepared by aqueous suspension polymerization in the presence of diluents to act as precipitants. As MA is totally soluble into aqueous phase, the use of two types of phase transfer agent was investigated, namely: TritonX-100TM [polyoxyethylene-(10)-isooctylphenyl-ether] and tetrabutylammonium perchlorate. The effect of the diluents on the surface appearance and the porous structure of copolymer beads was studied. Suitable particle stabilisation was achieved by using a combination of two suspension agents, namely: gelatin and 2-hydroxy-ethyl-cellulose. The network resins were characterized by optical and scanning electron microscopy, IR spectroscopy, elemental analysis (CHN), apparent density, swelling in different solvents and specific area by BET method. It was observed that the MA incorporation was more effective when TritonTM was employed as phase transfer agent. |
| Databáze: | OpenAIRE |
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