Graft polymerization of styrene onto waste rubber powder and surface characterization of graft copolymer
| Autor: | Dao Long Wang, Jin Long Zhang, Hui Zhen Lu, Chang Mei Ke, Hongxiang Chen, Yu Zhou |
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| Rok vydání: | 2011 |
| Předmět: |
Thermogravimetric analysis
Materials science Polymers and Plastics Bulk polymerization General Chemistry Condensed Matter Physics Styrene chemistry.chemical_compound chemistry Polymerization Natural rubber Chemical engineering visual_art Polymer chemistry Materials Chemistry Copolymer visual_art.visual_art_medium Polystyrene Fourier transform infrared spectroscopy |
| Zdroj: | Polymer Bulletin. 68:789-801 |
| ISSN: | 1436-2449 0170-0839 |
| DOI: | 10.1007/s00289-011-0586-9 |
| Popis: | The surface of waste rubber powder (WRP) was graft-modified with styrene (St) by bulk polymerization method. The effects of styrene content, initiator mass, time of reaction, and temperature on the graft efficiency were investigated. The results showed that the graft efficiency (%) was highest when 89 wt% styrene and 0.11 g of initiator were added for reaction time of 25 h at 85 °C. The surface of graft-modified rubber powder was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), energy dispersive X-ray (EDXS) analysis, and thermogravimetric (TG/DTG) analysis. The results showed that polystyrene (PS) was grafted onto waste rubber powder, which formed a WRP/PS core–shell structure. |
| Databáze: | OpenAIRE |
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