Correlation between chain microstructure and mechanical properties of two polypropylene/poly (ethylene-co-propylene) in-reactor alloys
文献类型：期刊论文
| 作者 | Li, Rongbo1,2; Xing, Qian3; Zhao, Ying1; Wang, Dujin1; Hu, Xuteng2 |
| 刊名 | COLLOID AND POLYMER SCIENCE
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 293期号:4页码:1011-1021 |
| 关键词 | Polypropylene in-reactor alloy Microstructure Mechanical properties Cross fractionation |
| 英文摘要 | This study concentrated on evaluating the structure-property correlation of two polypropylene/poly (ethylene-co-propylene) in-reactor alloys (A and B). Systematic investigation and comparison have been performed on the molecular structure and phase morphology of the polypropylene (PP)-based alloys. Especially, the bivariate distribution of chemical composition and molecular weight for each fraction was obtained simultaneously by adopting cross fractionation chromatography. The results illustrated the following structure difference which determines the ultimate mechanical properties of the PP in-reactor alloys. It has been found that the relative content of components polypropylene homopolymer (HPP) and ethylene-co-propylene random copolymer (EPR) is a little more in sample A than those in sample B, and meanwhile both of them in sample A show higher molecular weight and broader molecular weight distribution. Furthermore, the fraction of HPP in sample A eluted at a higher temperature, meaning that this fraction possesses better stereo-tacticity and can form more perfect crystals with higher crystallinity. These advantages in structure characteristics endow sample A with better rigidity-toughness balance than sample B. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-03 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28517]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Petrochina Petrochem Res Inst, Beijing 100195, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Rongbo,Xing, Qian,Zhao, Ying,et al. Correlation between chain microstructure and mechanical properties of two polypropylene/poly (ethylene-co-propylene) in-reactor alloys[J]. COLLOID AND POLYMER SCIENCE,2015,293(4):1011-1021. |
| APA | Li, Rongbo,Xing, Qian,Zhao, Ying,Wang, Dujin,&Hu, Xuteng.(2015).Correlation between chain microstructure and mechanical properties of two polypropylene/poly (ethylene-co-propylene) in-reactor alloys.COLLOID AND POLYMER SCIENCE,293(4),1011-1021. |
| MLA | Li, Rongbo,et al."Correlation between chain microstructure and mechanical properties of two polypropylene/poly (ethylene-co-propylene) in-reactor alloys".COLLOID AND POLYMER SCIENCE 293.4(2015):1011-1021. |
入库方式： OAI收割
来源：化学研究所
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