Polypropylene with high melt flow rate and high isotacticity prepared by phosphate-mixed external donors
文献类型：期刊论文
| 作者 | Zhou, Qian1; Xu, Hao1; Wang, Ailian1; Ma, Zhifeng2; Li, Huayi2; Zhang, Liaoyun1; Hu, Youliang2 |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2017-04-15 |
| 卷号 | 134期号:15 |
| 关键词 | Polyolefins Stereochemistry And Tacticity Structure-property Relationships Synthesis And Processing Techniques |
| 英文摘要 | High melt flow rate (MFR) of polypropylene can improve its processability and its high isotacticity is favor of keeping good mechanical properties of polypropylene. In this study, as a convenient and effective method, the mixture of phosphate and alkoxysilane as mixed external donors for Ziegler-Natta catalyst is used to improve MFR of polypropylene. The MFR of polypropylenes prepared by mixed external donors is three to five time higher than that prepared by dicyclopentyl dimethoxysilane (Donor-D) alone, which is attributed to broad molecular weight distribution and low molecular weight of polypropylene prepared by mixed external donors. In addition, isotacticity and lamella thickness of polypropylene prepared by mixed external donors containing triisopropyl phosphate or phenyl-phosphonic acid dipentyl ester are very close to that prepared by Donor-D, which lead to keep high thermal properties and good mechanical properties for the polypropylenes. (C) 2017 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38057]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Qian,Xu, Hao,Wang, Ailian,et al. Polypropylene with high melt flow rate and high isotacticity prepared by phosphate-mixed external donors[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2017,134(15). |
| APA | Zhou, Qian.,Xu, Hao.,Wang, Ailian.,Ma, Zhifeng.,Li, Huayi.,...&Hu, Youliang.(2017).Polypropylene with high melt flow rate and high isotacticity prepared by phosphate-mixed external donors.JOURNAL OF APPLIED POLYMER SCIENCE,134(15). |
| MLA | Zhou, Qian,et al."Polypropylene with high melt flow rate and high isotacticity prepared by phosphate-mixed external donors".JOURNAL OF APPLIED POLYMER SCIENCE 134.15(2017). |
入库方式： OAI收割
来源：化学研究所
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