Porous Polystyrene Monoliths Prepared from in Situ Simultaneous Interpenetrating Polymer Networks: Modulation of Morphology by Polymerization Kinetics
| Autor: | David Pahovnik, Petra Utroša, Ema Žagar, Sebastijan Kovačič |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Morphology (linguistics)
Materials science udc:54 Polymers and Plastics kemija 02 engineering and technology 010402 general chemistry 01 natural sciences Article Styrene polimerizacija Inorganic Chemistry chemistry.chemical_compound Hydrolysis Materials Chemistry hidroliza chemistry.chemical_classification Organic Chemistry Polymer 021001 nanoscience & nanotechnology Divinylbenzene 0104 chemical sciences Monomer chemistry Chemical engineering Polymerization makromolekule Polystyrene 0210 nano-technology |
| Zdroj: | Macromolecules Macromolecules, vol. 52, no. 3, pp. 819-826, 2019. |
| ISSN: | 1520-5835 0024-9297 |
| Popis: | Semi-interpenetrating polymer networks (semi-IPNs) were prepared by in situ simultaneous orthogonal polymerizations, where the linear poly(e-caprolactone) (PCL) was synthesized by ring-opening polymerization of e-caprolactone and the poly(styrene-co-divinylbenzene) (PS) network was formed by free-radical polymerization of styrene/divinylbenzene. Semi-IPNs were used as the precursors for the preparation of porous PS monoliths. To this end, the PCL domains were selectively removed by hydrolysis under basic conditions. By changing the amount of organocatalyst used for the ring-opening polymerization of e-caprolactone, the relative polymerization kinetics of both monomers was varied, which has a pronounced effect on the morphology of thus-obtained PS frameworks. |
| Databáze: | OpenAIRE |
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