Influence of core-shell rubber particles synthesized with different initiation systems on the impact toughness of modified polystyrene
文献类型：期刊论文
| 作者 | Gao, Guanghui; Zhou, Chao; Yang, Haidong; Zhang, Huixuan |
| 刊名 | Journal of applied polymer science
 |
| 出版日期 | 2007-01-15 |
| 卷号 | 103期号:2页码:738-744 |
| 关键词 | Core-shell rubber particles Initiator Polystyrene Toughness Dynamic mechanical analysis |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.25030 |
| 通讯作者 | Zhang, huixuan(zhanghx@mail.ccut.edu.cn) |
| 英文摘要 | Core-shell poly(butadiene-graft-styrene) (pb-g-ps) rubber particles were synthesized with different initiation systems by emulsion grafting polymerization. these initiation systems included the redox initiators and an oil-soluble initiator, 1,2-azobisisobutyronitrile (aibn). then the pb-g-ps impact modifiers were blended with polystyrene (ps) to prepare the ps/pb-g-ps blends. in the condition of the same tensile yield strength on both samples, the izod test showed that the notched impact strength of ps/pb-g-ps(aibn) was 237.8 j/m, almost 7 times than that of the ps/pb-g-ps(redox) blend, 37.2 j/m. from transmission electron microscope (tem) photographs, using the redox initiators, some microphase ps zones existed in the core of pb rubber particles, which is called "internal-grafting." this grafting way was inefficient on toughening. however, using aibn as initiator, a great scale of ps subinclusion was seen within the pb particle core, and this microstructure increased the effective volume fraction of the rubber phase with a result of improving the toughness of modified polystyrene. the dynamic mechanical analysis (dma) on both samples showed that the glass transition temperature (t,,) of rubber phase of ps/pb-g-ps(aibn) was lower than that of ps/pb-g-ps(redox). as a result, the pb-g-ps(aibn) had better toughening efficiency on modified polystyrene than the pb-g-ps(redox), which accorded with the kerner approximate equation. (c) 2006 wiley periodicals, inc. |
| WOS关键词 | EMULSION POLYMERIZATION ; NATURAL-RUBBER ; MORPHOLOGY ; BLENDS ; BEHAVIOR ; LATEX ; MECHANISM ; POLYMERS ; POLYISOPRENE ; CAVITATION |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000242468700012 |
| 出版者 | JOHN WILEY & SONS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382098 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Huixuan |
| 作者单位 | 1.Changchun Univ Technol, Inst Chem Engn, Changchun 130012, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Guanghui,Zhou, Chao,Yang, Haidong,et al. Influence of core-shell rubber particles synthesized with different initiation systems on the impact toughness of modified polystyrene[J]. Journal of applied polymer science,2007,103(2):738-744. |
| APA | Gao, Guanghui,Zhou, Chao,Yang, Haidong,&Zhang, Huixuan.(2007).Influence of core-shell rubber particles synthesized with different initiation systems on the impact toughness of modified polystyrene.Journal of applied polymer science,103(2),738-744. |
| MLA | Gao, Guanghui,et al."Influence of core-shell rubber particles synthesized with different initiation systems on the impact toughness of modified polystyrene".Journal of applied polymer science 103.2(2007):738-744. |
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来源：中国科学院大学
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