Effect of the gamma-form crystal on the thermal fractionation of poly(propylene-co-ethylene)
文献类型：期刊论文
| 作者 | Wang S ; Yang DC |
| 刊名 | journal of polymer science part b-polymer physics
 |
| 出版日期 | 2004 |
| 卷号 | 42期号:23页码:4320-4325 |
| 关键词 | ETHYLENE/ALPHA-OLEFIN COPOLYMERS RISING ELUTION FRACTIONATION LOW-DENSITY POLYETHYLENES ISOTACTIC POLYPROPYLENE SEQUENCE LENGTH CRYSTALLIZATION MORPHOLOGY PROPYLENE POLYDISPERSITY DISTRIBUTIONS |
| ISSN号 | 0887-6266 |
| 通讯作者 | yang dc |
| 中文摘要 | the effect of the gamma-form crystal on the thermal fractionation of a commercial poly(propylene-co-ethylene) (ppe) has been studied by differential scanning calorimetry (dsc) and wide-angle x-ray diffraction (waxd) techniques. two thermal fractionation techniques, stepwise isothermal crystallization (sic) and successive self-nucleation and annealing (ssa), have been used to characterize the molecular heterogeneity of the ppe. the results indicate that the ssa technique possesses a stronger fractionation ability than that of the sic technique. the heating scan of the ssa fractionated sample exhibits 12 endothermic peaks, whereas the scan of the sic fractionated sample only shows eight melting peaks. the waxd observations of the fractionated ppe samples prove that the content of the gamma-form crystals formed during the thermal treatment of the sic technique is much higher than that of the ssa treatment. the former is 57.4%, whereas the later is 12.6%. the effect of they-form crystals on thermal fractionation ability is discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000225194000011 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14747]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang S,Yang DC. Effect of the gamma-form crystal on the thermal fractionation of poly(propylene-co-ethylene)[J]. journal of polymer science part b-polymer physics,2004,42(23):4320-4325. |
| APA | Wang S,&Yang DC.(2004).Effect of the gamma-form crystal on the thermal fractionation of poly(propylene-co-ethylene).journal of polymer science part b-polymer physics,42(23),4320-4325. |
| MLA | Wang S,et al."Effect of the gamma-form crystal on the thermal fractionation of poly(propylene-co-ethylene)".journal of polymer science part b-polymer physics 42.23(2004):4320-4325. |
入库方式： OAI收割
来源：长春应用化学研究所
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